I'm regularly using one in a rental rehearsal studio, here are my 2 cents:
Sounds great alone, immediately disappears in a band context. The lack of mid control on the clean channel and the 1 knob "mid shape" on the crunch channel is a bummer, due to the first sentence, it is quite hard to dial in the necessary amount of minds (It running with an Orange 4x12 ) The clean channel is nice but for a pedal platform, the crunch channel with the gain down and the master up is a lot more organic and dynamic solution. It has a bunch of power scaling options, triode, pentode, 4 tubes, 2 tubes, but I do not like any of them because it sounds like, it only affects headroom and compression, not volume. The downside is reliability, the rehearsal studio has 12 rooms and a TH30 half stack in each room next to an Engl/Boogie halfstack. All of the TH30s broke down after the first 3 months and needed major servicing. As far as I know it's related to the lack of heat dissipation. The other halfstacks take the beating without an issue.