I've been using a TS100 for the last 4 or so years. It sounds great, it gets loud (don't let 50 watts per channel fool you, it's plenty loud for any club type gig), doesn't seem to color the sound much, but it's heavy.
I recently ordered one of their lightweight power amps and took the TS100 out of my rack a few days ago. Unfortunately the lightweight amp was damaged/defective and blew up (sparks, smoke, and blew the circuit breaker) as soon as I turned it on. So for our last practice, I ran through a massive Crown power amp and didn't get the impression the Crown beast was capable of getting as loud as my TS100. I don't know the rating on the Crown, but it's a big, extremely heavy, 3 rack space thing...
Anyway, the TS100 is a nice amp, I would definitely recommend it, but make sure you're ready to lug it around. In spite of my new DOA amp, I'm going to continue to try the Carvin lightweight amps since their customer support is so good. If it weren't for the weight, I wouldn't hesitate to keep using the TS100 though.