Welcome zevin!

You may also want to get a free account, or a $10 lifetime account at http://dslreports.com

More specifically, you can see plenty on the VoIP forums:
http://www.dslreports.com/forums/59

And also good (for positive reviews) here:
http://www.dslreports.com/docontrib/ISP/3156

See other reviews here:
http://www.dslreports.com/comments/3156

BTW if you need Lawyer jokes ...

These guys likely have FAX lines too, and until a good solution is worked out, know that VoIP is a unsuitable way to send mission critical FAXes. Voice over Internet Protocol is well suited to voice.