Decent
It's a decent cover, although not very long. The first thing I would say is that it should be a bit longer. The beginning was awesome and I loved the sounds I was hearing but it seemed a bit out of place when it just changed suddenly. The synths were pretty cool sounding and the percussion was alright.
This doesn't really sound like anything extraordinary per se, I mean it's not original, it's short, and there really isn't a whole lot going on. I'd still say it's an okay cover, just nothing I'd ever listen to voluntarily. It would probably be a great contender for a flash video though.
Nonetheless, keep up the good work, and enjoy your new keyboard.