There’s relatively famous people that use the B3n live; apparenly Stu Hamm and Marcus Miller do (or did). But dunno how heavily. Regardless though @Gio is right in that if you’re a pro you probably want to spend on a Helix or better. The Zooms are awesome but they are not top tier by a long shot. As much as I love them for what they are - best bang for the buck in effects out there
The thing that held me back from the MS60b is it is based on the older B1on era processor and effects models. If they updated it (like they did the guitar one) to be as good as the B1four/B3n and with their new models it would be a lot more compelling at its price.
Then again there were some cool models back on the B1on too, I really liked its chorus and compressors.
One thign to be wary of, especially if you plan to chain a few of them, is how good its bypass is. I don’t know.
But man, it’s the perfect form factor. I seriously considered getting one for a couple months.