Very monotone.
Not that good.
The 4/4 clapping made it very monotone, and the single synth reapeting the note over and over again so fastly was very unbecoming to the ear.
The synth actually clipped here and there - it really was annoying. Here's a way to avoid this - before you upload the song to NewGrounds, listen to it in headphones, speakers, and your (or someone else's) car. That way you can make sure that it doesn't audably clip.
Try to use beats that are more intresting besides 4/4 (listening to shuffle, jazz and swing really gives my ideas for good drum beats, try it). Using more instruments, one for rythem (chords) and a few for solo is a great and very reliable way to create a nice sounding loop.
Good luck!