Great fun!
To those complaining about the Double Jump issue, you're just shit at this game. If you haven't noticed, on one of these levels, you HAVE to drop off the edge, then use that jump in order to get to a platform without being hit by spikes. Douchebags.
Great playability though, some levels seemed a little repeating however and the music should've changed more often rather than just looped, but seeing Meatboy again... Agh, SEQUEL MEATBOY NOW!