I have several phones with them. Apparently they use a new and different billing system for GSM than with their older accounts, and it works none too well.

I had bought a Blackberry from them and then returned it and they were very nice about it. But their systems didn't process the return the first time and took an awful long time, to their disadvantage financially. Still, I found them pleasent to deal with even though their IT is going through major problems.