Berg Larsen was THE bari mp in times where the alternatives were limited. Unfortunately, it is probably the brand which shows the greatest inconsistency between supposedly identical models, not speaking of all the evolutions over years. If you get a good one, it remains one of the best choices on bari. But finding and selecting the right one requires time, luck, and fair playing skills, as well as a horn you feel at home with.
So I'd really also consider more reliable alternatives, among which Rico seems interesting (I never played one on bari), Vandoren is doing a great job with the V16, as well as other products mentioned in this thread.
I recently switched from a Berg SS 125/3 to a Jody Jazz ESP, an excellent bari mp in the "upper mid-class" category. Easier to play, more core than the rather edgy Berg. Production was stopped, but you still find them on the market.