These amps were completely off my radar until yesterday's impulse buy. I was out on the hunt for an RH450 and ran into this deal. $349 (at GC) for what you get with this thing was too much to pass up. When I got to GC, there was another bass player in the room trying out all the amps, so I got a little A/B action. While I was playing the BG 500 2x10, he played the Mesa M6 or 9 through Mesa cabs, Ampeg amp of some sort, couple of Markbass amps. Finally coming over and saying, what is that you are playing, it sounds good

I let him play through it for a while and really liked it. He was eying the 15 combo as I wheeled out the 2x10, hehe.
I went straight from there to Home Depot and got a little folding dolly for it. That makes moving it solo feasible for me. Still getting 70lbs in and out of the back of my truck solo is a PITA. I went straight from Home Depot to my gig. Set it up, sounded checked, sounded really good. Sound guy really liked it. Told him I just got it for $349, he and the other sound guy immediately came over and started closely examining the amp and reading the name of it
Did 3 hours on it last night, slap and fingerstyle. I was really impressed with it. Love the tone. The amp sounds big, really big to me. Don't think I've ever heard that much coming from a 2x10 before. I had the tone controls around noon. Little past on the bass control. Maybe a fuzz back on the low mid. The controls are really sensitive! Input was around 3-4 (had to roll it back a little for the sound guy since no DI level control). I'm not sure where the master was, probably 2-3 somewhere in there but plenty loud. I played on it like that all night, heard lots of positive feedback, sounded good in the mix, etc. Another bass player in the audience came up to check it out. All in all, I was quite pleased with the tone and punch it was putting out. I kept thinking, "dang, all that for $349?!"
The downside for me is lifting in and out of the truck. If I have someone there, its a non issue, but if its just me its a PITA. The small dolly makes it easy to move as long as you have a decent surface to roll it across. Didn't know about the buttons, all of mine work at this point. I don't really have a use for the memory or contour buttons, but I need that mute/tuner button to continue working for me. All in all a great buy so far.
Today I am going to A/B it with my Carvin BX500. I'll do some direct recorded clips and stuff.