This amp is great. I was not able to find one locally to test drive so I had to watch videos and read reviews to make my decision. I'm so glad I ended up ordering this from Sweetwater. I ordered it Friday morning, had it in my hands Saturday afternoon.
The "clean" is clean and round, "crunch" is fat and thick, "blues" is responsive and earthy, "burn" is punchy and driven. Having the option to choose 5, 25, or 50 Watts is nice and does not just change the volume, but also changes feeling of the amp and how it compresses the guitar signal. If you are wondering if 50W is enough, find one to play. I actually had a heavy handed drummer comment on how loud it was.
I feel that this amp (with the right cab) could be used for any sized show.
All in all, this is a great amp!