I've demoed a bunch of different Krank amps and always walked away very happy! I heard their customer service can be dodgy, however, and it may be hard to get replacement parts should anything go wrong. A few guitar shops around here stopped carrying them for that very reason.
That said, go with a 50 watt and getchya pull!
Looking for Guitar Lesson in the Dallas/Fort Worth area? Check out my Guitar Lessons In Arlington website!