This was getting to be pretty lonely thread, so I'll put a little life into it.
First Impressions after 2 weeks of service (standard cable):
The signup, modem delivery and installation were hassle free. Customer support is great. Lots of energetic people with lots of good answers when you call in.
Early routing quirks with voip.ms were dealt with quickly and effectively.
The speed is good but latency and especially jitter are a little dodgy sometimes. The results vary widely depending on the server and the time of testing.
The ping test results shown are good but it's often a B or C+ grade given to line quality.
I'm new to cable internet so perhaps this is normal (comments would be appreciated).