I only got to play for about an hour before I crashed out to sleep but from what I got to play it went pretty good. I say this because the unit didn't crash on me :) But one thing that stood out to me as a drag was maneuvering thru my list of music via the buttons on the unit. I could drag thru the crates on the left hand side but when I went into the browse section it became virtually unusable and that was during me not having any songs loaded or playing!... but i was using 1.0.3 and I tried to get .4 but it was down last night for whatever reasons. I will give it another go after work and I will write a better review. Other than that major issue I had a few hiccups in songs that I played but the controller itself is pretty solid and nicely built. we will see how it does in round two