Well, I never finish a mix just with BIAB. It is where I start, and of course the Real Tracks and Drums help a lot. But you need to take that midi file and put it into a sequencer, where you can really start to edit the way the tracks play, and add other instruments. Knowing how to Record and Mix audio will also help a lot.

I have had tons of conversations with musicians who listen to BIAB with the MS wavetable sounds say "Man, that sounds like crap, it's a terrible program". Then I take that same track, add Real tracks and some very high quality VST instruments, change the arrangment, and all of a sudden their eye's light up and they say "Wow, that sounds great, what program are you using now"? BIAB is a great tool, but you if do not use it correctly, you will get lame results. As Mac says'>It's another instrument man, just like a horn, you have to spend time to learn it correctly".
I agree!

Ed