From what I've read on webhostingtalk they seem to have a great reputation.
They do? Not as far as I recall.
Anyway, my experience with them (a bit dated now, 8-9 months ago) makes me describe their service as unsuited for anything that relies on CMSes or databases in general, due to server performance being... less then perfect. Uptime of about 99.8% for a one year period, which is worse than many other hosts have been able to achieve.
My experience with iPage (which is essentially the same hosting platform, the same staff etc. as Fatcow) suggests that things have not changed.