First gig test....amp had plenty of power.
4 piece rock/country band. We had PA support, but with the larger stage, I had the BG250 up to 12:30/1pm (and it was probably a bit loud but no one complained so WIN).
The tuner is good for practice but for quick tuning between songs, it is not the best. I switched between upright (with pickup) and 5 string. Ran it flat except cut mids to 11am with the upright.
Third set I turned the tube drive up from 3 to 5. This made the amp much better. At lower volumes/home practice, I didn't really think the tubedrive improved the tone, but at louder volumes it certainly does add some character.
Here's the interesting thing I have to check out today (running on about 4 hours sleep now, so a bit later after more coffee): I could hear a vibration or buzz by the end of the night on stage. I was kind of in a corner the way the stage sat, so I don't know if it was the amp buzzing or if I was vibrating something on stage (country bar, so there were things on the wall etc). I'll report back today. If not though, the amp passed with flying colors in a loud environment.
It is as loud as my Carvin BR515N combo (Carvin BX500 into 1x15 cab which runs at 8 ohms). The difference is that as a combo the Carvin has a bit more headroom and of course you can add extension cabs. But....it is almost 50% heavier, and the BG250 has some cool features w/tuner, effects etc.
So (fingers crossed it wasn't my amp buzzing).