SunRocket

does anyone who reads this use, or know anyone who uses, SunRocket phone service?

It is similar to Vonage, which we have now and we're very happy with it, but this service will save us about 130 bucks a year. On paper it seems to be better than Vonage, you get a few more extra stuff, like a second phone number, just wondering if anyone has it, and can tell me about the quality.