Exceptional!
This loop, in its own right, is superb. Every synth/sound/sample/whatever in this song correlates perfectly.
This is simple, pure and beautiful.
When the drums began however, and don't get me wrong, they were a little dry in my opinion. The beat is perfect for this song, it virtually changes the previously perceived pace without being upsetting which is good.
In my opinion this would be flawless if you were to add the tiniest of reverb on the drums, not much, just a little bit. When they begin and stop, it just feels dry.