I know I'm preaching to the choir here, but I provided the backline for two gigs this weekend (6 total bands), and everyone was impressed by the MG 350! It covered a range of styles, sat well in the mix, and made the sound people happy. It's a great amp, especially on the road!
I will add my experience from last weekend. I haven't had a lot of bass work over the last few months but when I do I try to savor them and try out the gear I don't use that often. And my current amp/can setup is am MG800, and MB350 as 'backup, and a Berg HG410X for its size and form. And all have limited time so are so I haven't been able to fully get comfortable or evaluate, especially with a new bass or new pickups in an old bass it's all new into the assortment. My mind says the MG800 with that cab should be the #1. But for the second half of last Saturday's job I swapped in the MG350 and for reasons I can't explain yet I think I preferred it. It's incredibly capable. Hopefully I get out again soon and can test again.
