I got BIAB this past Christmas so I consider myself a new user. I had BIAB for Windows 95 and BIAB 7, but I never bothered to do anything with it -- couldn't get past the midi sounding stuff. RealTracks forced me to give a try!!
So I've had it 6 weeks or so and I have built about 10 songs for the
www.rpmchallenge.com thing I am doing. I have all the chords in (mostly), instruments picked and now I just have to do all the vocals, my instrument parts and make edits/adjustments as needed. Since I am actually trying to produce something, I feel I am putting it through its paces a little. I am probably only using 1% of the functionality, but BIAB (and RB) are doing just great. Still trying to get the pieces to sound "real" and get that groove going, but for what I have done so far BIAB has been incredibly easy and straightforward.
The only question I would have, is this program geared at all to "non-musicians"? If you don't know what chords go with what, what 4/4 or 3/4 means, the concept of measures, choruses (I still like intro, verse, chorus, bridge, outro terminology), rests, shots, holds, pushes ...... how are you going to use BIAB effectively?
Kevin