Pixeljunk Eden Demo impression

So I just got done playing the first three worlds of pixeljunk eden and all I can say is wow...what an addictive and awesome game.  It took me about...20 minutes to get into a good rhythm with the swing mechanic and I died a few times.  However, once I got the hang of things I loved how the game controlled.  The demo hints at different enemies in the game which can be attacked using a spin move which seems to add even more depth.  The music sounds great in Dolby Digital 5.1, but I didn't notice if it fluctuates around the gameplay or not...ala Rez.  I am definately going to pick up the final version next week and can see this being just as addictive as pixeljunk monsters.