Well I have been using ViaTalk for a couple of months now, and I am pretty satisified.
I have been very happy with the availability of their network. So far, every time I have wanted to make a call, I have been able to. When I used Broadvoice in the past, there where some pretty big issues with their network going down.
We have a phone number in Eugene Oregon, where my wife's sister lives. Since most folks are using cell phones, it really isn't too much of a hassle having an out of town number. They have numbers in Spokane if we want one, and we could even port over our regular phone if we choose to.
The call quality has been acceptable. It does seem to be a little bit degraded from our land line, but that could be related to the wireless phones that I am using. I have noticed a slight echo once or twice, as well as a pause or two in a call. I have never had one drop.
Overall, I am quite satisfied. We have an additional fully featured phone line with unlimited long distance for less than I was paying for long distance before.
I wish that ViaTalk had a speed dial feature. That seems like a strange oversight.
Next, I plan to build an asterisk box so I can manage my both my land line and the ViaTalk line from my end.