I have had Vonage since the middle of Feb 2004. I absolutely love it. The features are cutting edge. (voicemail emailed to you..etc.) When you loose power, you will need to reset the Vonage Adapter, but that has only happened to me 2 times. When the Vonage Adapter does loose it signal, Vonage has a feature where it automatically forwards calls to an alternate number. (I use my cell phone) I am 100% satisfied with my service.