I got it last week. So far I am very pleased. The sound quality is much better than a standard land line and I don't get that pesky message telling me that I forgot to dial 1 when I call long distance, they dial 1 for you. I have the unlimited residential plan for $24.99 per month. They even send you an email when you get a voicemail message. But whatever you do, do not buy the equipment retail. If you do then Vonage will charge you a $60 activation fee. If you go directly through them, the startup fee is only $10 and they give you the equipment for free.
Hope that helps, and good luck.