I've been using BIAB for about 15+ yrs on my professional jazz gigs. I only use real tracks now, no MIDI I love this program but here are a couple things I'd like to see:

Consistent mixes throughout styles. I have over 200 tunes that i gig with and I still have problems when going to different styles/tunes as the the levels change quite a bit(I only use piano, bass and drums)and it's hard to adjust on the fly even with the great mix.

I'd like to see a nice EQ plugin(prefer a parametric). BIAB sounds great but the rooms I play in could be helped with some EQ.

Thanks

Kevin

My jazz gig:

My Godin Nylon gtr through an Evans amp
Macbook Pro
TC Electronics interface
Roland BA-330