I've had it a few months now. I have it plugged into a laptop which connects through our slow office wireless network. When it is directly connected to the lan it works perfectly. Thru this slow wireless it does lag a little bit. I used it sucessfully at home on my satellite connection but I wouldn't recommend it.

You get your own phone number- soon you'll be able to port over your existing number, and it has built-in voice mail on their server- When you get a message the system emails it to you in a .wav file. I've even faxed with it, though they don't support that feature.

All in all, I've added a business line with unlimited calls in the us and canada with a 20 dollar gadget and 20 dollars a year.