Hey Zarak, I have VoIP, and am very pleased with the results thus far.
I went with AT&T over Vonage for a couple reasons: 1, it was an instant change of my land line number to VoIP. No paperwork and wait time. Secondly, and most importantly, I heard through 2 or 3 guys I work with that Vonage has flaky service at times. It can go down altogether, and you sometimes get delays and static due to bandwith issues.
I have had the VoIP for about 4 months now, and in that time I have had exactly 1 phone call that had an issue with echoing. I'm not even sure if it was my service or the person I was talking to. Other than that, its been great. I use it for work and I'm on it for several hours most days.
I went with the 30 dollar unlimited long distance calling in US and Canada. The same Vonage plan sells for 25 bucks I believe. So far the 5 extra bucks is paying off.
