Pretty darn awesome!!!! Now where's my Bronco 100?!?!?
Well I own two Mustang I amps and love them to death, so I thought I'd give this a try... Not disappointed at all, it is everything I was hoping and expecting.
It is pretty darn loud, it's true. In my humble basement studio with pretty good sound deadening, it definitely could keep up with my drummer, and it was rattling my house pretty good, and probably annoying the neighbors to boot. But yeah, it's not like a complete destroyer or anything, there is a limit to how much air a 10" speaker and 40 watts can move!!!
The amp models, as others have reported, are excellent. The FUSE software makes tweaking the settings really fun!!!! It gives you access to other settings that you can't get to otherwise, such as the little front-panel toggles on the Ampeg model (excuse me, I mean "Rockin' Peg LOL) which really tweak the sound just like a real 'Peg.
The 1-button footswitch is also practically a necessity if you want to have fun, it is very easy to create a "stomp box" to allow you to switch to a different amp and back. They should just include the footswitch with the amp, but they don't, BOOO.
All I can say is, if they ever come out with "Bronco 100" with 2x10 speakers, hopefully in an upright config to put the controls closer to a standing human, I will upgrade so fast it will make Sweetwater's head spin. It would be nice to have a *little* more volume, and it makes no sense to have 10 different Mustang guitar models and only 1 Bronco bass option... Are you listening, Fender?
Speaking of volume, I did tie the line-out into my studio PA/monitoring system and the sound is excellent, just like the sound through the speaker, so you can "reinforce" the volume by piping the line out elsewhere very easily.
I didn't try the USB sound-out, but I know the Mustang can be recording very easily and accurately via USB and I'm sure the Bronco can as well.
Hope that helps!