its a non-linear loop sequencer, yet, you can't just say I'm going to record 16 bars and then start looping while I move to the next track. You have to stop,dial in the end, wash, rinse repeat.
The IPAD has a sequencer that does that for goodness sakes.
While you're at it, why not wait until I start playing, like the ol' ESQ1 and roland workstations? Which let you pre-set a loop point/bar amount.
Seems like looper for midi would be a step in the right direction.
propellerhead record lets you do this functionality, now.