Jjos1 vs jjos2

Outside of jjos1 not having a track mixer what other set backs does it have that makes jjos2 a must have in anyone's opinion?

Thz, I was actually aware that there was a comparison chart. I was just interested in the opinion of others because I know users who have 2 who claim they don't really use all the features and was good with 1. I also wanted to see if anybody was doing something with the 2 that was innovative.