So far so good with some caveats

I did buy that Western Digital Powerline Kit and it works great. Since one of my Tivo's is an older Series 2, with no ethernet jack, only USB ports, I also had to buy a USB-to-Ethernet Adapter (didn't want to go wireless, too slow), so I bought TRENDnet USB to 10/100Mbps Adapter TU2-ET100, which works great with Series 2 Tivos.

4. Call quality has been great so far, and I'm thrilled to not spend $70 a month for a landline anymore. In three months that savings will pay for my Obihai and my Western Digital ethernet-over-powerline adapters.

5. Follow the advice of others and get a Gmail address JUST for your Google Voice number. Import your contacts there, and then you can create custom voicemail greetings for friends, family, spouse, business, spammers, etc. Pretty cool. I also have it set within Google Voice that only select friends and family ring both my Google Voice number and my cell phone at the same time, so I can answer whatever phone I'm closest to. Everyone else can just ring my GV #, others go straight to VM, and Spammers get blocked (you save them as a contact on your Google Voice page, mark them as Spam, and check "Block") or you can record a "special" message just for them. HA!

6. The incoming Caller ID I get provides no names, just phone numbers. I have DECT phones that talk to me and that I can program, so I make sure friends/family names/numbers are in the phone's phonebook, and it announces the names after that. Otherwise it just says the number. When you call into your Google voicemail, though, it still says "unknown caller" and then the number.

7. As others have said, no 911, but use your cell, or use one of the $1.50/month or so services mentioned in other reviews. Have yet to do this.

8. This doesn't apply to me, but from what I understand, since each Obihai box comes with its own number, and if everyone in your family has an Obihai, and say you're all in different countries (or states for that matter), you can call each other's Obihai numbers for free. I still don't quite get being able to call into your US-based Obihai from abroad and then calling within the states for free, but I guess I'll try harder to understand when I need it!

More :

Best Price Kensington Presenter Pro Remote with Green Laser
Best Price Panasonic KX-TG6533B DECT 6 PLUS Expandable Digital
Best Price Pantone Plus Series COLOR BRIDGE Guide Coated
Best Price 500 Sheet Input Tray For For P2055
Best Price Fellowes Saturn SL 125 Home & Office
Best Price Ooma Telo Free Home Phone Service
Best Price Sharp Electronics XEA206 Cash Register
Best Price Calculated Industries 6135 Scale Master ProXE Advanced
Best Price Grandstream GXP-1200 2 Lines Business Phone
Best Price Jabra GN9350 DECT 6 Wireless Dual-Functional Office/VoIP
Best Price Aurora AS1018CD 10-Sheet Cross-Cut Paper/Credit Card/CD Shredder
Best Price Smart Label Printer 440 with 300 Dpi
Best Price Fujitsu ScanSnap S1500 Instant PDF Sheet-Fed Scanner
Best Price Brother Printer DCP7060D Monochrome Laser Multi-Function Copier
Best Price Pantone Plus Series GPG001 ESSENTIALS Six-Guide Set
Best Price Fujitsu ScanSnap S1300 Instant PDF Sheet-Fed Mobile
Best Price Apache AL18P 18" Professional Laminator
Best Price Grandstream GXV3140 IP Multimedia Phone
Best Price Sanus VMF308-B1 8" Super Slim Full-motion Mount
Best Price HP Scanjet 7000 Sheet-Feed Scanner L2706ABGJ
Best Price GiiNii GN-5LS NuLife Full Page Picture Scanner
Best Price Kodak PS410 Picture Saver Sheet-Fed Scanning System
Best Price HP LaserJet 1012 Printer
Best Price Canon Pixma MX420 Wireless Office All-in-One Printer
Best Price HP Officejet 6000 Color Inkjet Printer CB051A#B1H
Best Price Texas Instruments Voyage 200 Calculator
Best Price AM103 English Chinese Pinyin Dictionary Translator Translate
Best Price HP OfficeJet H470 Mobile Printer
Best Price Canon Color imageCLASS MF8350Cdn All-in-One Printer 3555B001AA
Best Price HP P2035N LaserJet Printer Monochrome
Best Price Sony M2000A Microcassette Transcribing Machine
Best Price iVina BulletScan S400 Duplex Color Sheetfed Scanner
Best Price Canon imageCLASS D550 Laser Multifunction Copier
Best Price MOTOROLA L404 DECT 6 Cordless Phone with
Best Price CSSN Id scan Compact Light Weight Portable
Best Price JK Audio QT Quicktap Telephone Handset Audio
Best Price Panasonic KX-TG7533B DECT 6 PLUS Expandable Digital
Best Price MS9500 Voyager Scanner USB-KBW & USB-HID Kit
Best Price Kodak Scanmate I1120 Scanner
Best Price Polycom Voicestation 300 Analog Conference Phone
Best Price Uniden DECT 6 Two-Line Cordless Phone with
Best Price FI-6230 Clr Duplex 40PPM/30PPM USB 2 300DPI
Best Price VTech T-Mobile Bluetooth Expandable Cordless Digital Phone
Best Price NeatReceipts Professional Mobile Receipt and Document Scanner
Best Price Brother DCP-7040 Laser Multifunction Copier with Auto
Best Price Brother Belt Unit BU-200CL
Best Price AT&T CL81301 DECT 6 Cordless Phone Silver/Grey
Best Price Photoconductor Blk Type 145
Best Price Kodak ESP 9250 All-in-One Printer 2773635
Best Price HP Scanjet G4050 Photo Scanner L1957A#B1H
Best Price Mustek ScanExpress A3 USB 2400 Pro Scanner
Best Price Panasonic KX-TS4100B 4-Line Integrated Phone System expandable
Best Price GE DECT 6 Corded Phone with 2
Best Price Pyramid Technologies 1000 PTI 1000 Digital Time
Best Price Clarity Dect 6 Cordless Amplified Phone With
Best Price Verizon V500AM-2 Cordless Phone with Two Lines
Best Price Pathfinder Electronic Flight Computer CX-2
Best Price Brother QL-1050 Wide Format PC Label Printer
Best Price Canon PIXMA MX860 Wireless All-In-One office Printer
Best Price Konftel 300W Wireless Conference Phone 2715312
Best Price Royal Machines PS700 Hand-Held Bar Code Scanner/Bar
Best Price At&t Cl82450 Dect6.0 Digital 4 Handset Answering
Best Price GE Easy to Use Amplified Corded and
Best Price Lexmark Genesis S815 All in One Printer
Best Price CSSN ScanShell 800N Portabe sheetfed A6 Scanner
Best Price HP Q7504A Image Transfer Kit
Best Price Epson Perfection V300 Photo Color Scanner Black
Best Price Epson C11C655001 Stylus Photo 1400 Large Format
Best Price V-Tech LS6245 DECT 6 Expandable Cordless Phone
Best Price Crosley CR56 1950's Pay Phone Red
Best Price Polycomยฎ CX200 Desktop USB Phone
Best Price QuickBooks Pro 2011 [Old Version]
Best Price SAMSUNG COMEBACK T559 GSM Unlocked Phone White/Plum
Best Price 2350DN 40ppm 1200 x 1200 dpi Network
Best Price Motorola DECT 6 Enhanced Cordless Phone with
Best Price Mustek Scan Express A3 1200 Pro USB
Best Price RCA 25110RE3 cordless phone w/ call waiting
Best Price Lexmark Interpret S405 Wireless N Multifunction Inkjet
Best Price Epson Perfection V33 Photo Scanner B11B200201
Best Price Ameriphone JV35 Phone with 37-dB Amplification Braille
Best Price HP LaserJet P1006 Printer
Best Price Texas Instruments TI-NSpire Math and Science Handheld
Best Price Panasonic KX-TG9322T 2-Line DECT 6 Cordless Phone
Best Price CASIO Spanish English Color Translator Dictionary EW-S4000C
Best Price Visioneer Strobe XP 220 600 DPI Portable
Best Price Epson WorkForce 520 Color Ink Jet All-in-One
Best Price Epson Artisan 800 Wireless Photo All-in-One Printer
Best Price Epson Artisan 50 Color Inkjet Printer C11CA45201
Best Price Symbol LS2208 General Purpose Barcode Scanner
Best Price AT&T CL80109 DECT 6 Cordless Phone Accessory
Best Price Brother DCP-8085dn Digital Copier and Laser Printer
Best Price Panasonic KX-TG6643B DECT 6 Cordless Phone with
Best Price Panasonic KX-T7885 Wireless Multi-Line Phone with Caller
Best Price Sony FS85USB Digital Recorder Transcription Kit
Best Price Hewlett Packard Q3675A Image transfer kit for
Best Price Panasonic KX-TG4025N DECT 6 PLUS Expandable Digital
Best Price Atlasnova Green Laser Pointer with Feedback APC
Best Price Qwizdom Q4 Remote
Best Price Nikon Super CoolScan 5000 ED Film Scanner
Best Price RCA 25270RE3 ViSYS 2-line Corded/Cordless Landline Telephone