Just played the demo. I'm not really big into rhythm games but I was looking forward to trying this because I enjoyed Rock Band Unplugged on the PSP, but now having played it this game isn't really like that which is disappointing. I don't really know what it is about it, it just doesn't feel right. I think to me it felt more natural in Rock Band Unplugged to play phrases on each instrument before switching to another to keep your combo going, whereas in Blitz you just bounce around all over the place. There doesn't seem to be much penalty for missing notes either. Also I don't care for only having two notes per instrument, feels like it limits what they can do with the note tracking. They should have gone with four.
It's probably my own fault for expecting it to be something it's not, but it's just not clicking with me. What do you guys think of it?