What's the point of visual feedback compared to simply listening to a track in order to determine if it's appropriate for a song? I can think of a few examples of beats that contained complex fills that I didn't like but that also contained beats I ended up using; I simply deleted the fill. Had I skipped the groove altogether because I could visually see that it contained a complex fill, I would've missed out on a very usable beat.
The only time visual feedback is useful for me is when modifying a beat.