I use it actually very rarely, but its nice to use when you want to fade in/out your track, but thats laziness cuz I can take it to soundforge and do that afterwards. other than I find it "cool" some of the things you can do to sounds with automation, but in the genre of hip hop n r n b, cool is just weird and doesn't fit in well with the artistes so i leave out all a that coolness out, its useful in disco n trance n em other joints where that type of twistedness is accepted as normal in the beat.