I totally had a blast with the game. If you've got good rhythm and/or enjoy puzzles you can really have some fun. Playing even on medium gets the fingers a good work out. And unlike Boom Boom Rocket or DDR that use either DPAD or ABXY, GGBS actually uses the entire controller in later stages of medium and hard and I think that's super cool. I like the balance where on easy you can really just play casually and then really get deep into gameplay on the harder stages. That's worth 10 bucks right there.
At the same time I find myself playing endurance more and more for the pick-up-and-play experience even after I've finished the tournament. Multiplayer is also kinda cool where you have a super-easy mode and you can have a young kid (or a gaming noob) join you in coop or versus. And in a world full of games with explosions and violence its good to play a game that the everyone can enjoy.
I think Little Boy Games did an awesome job creating a game that has appeal for casual and hardcore gamers alike. Not many games can pull that of IMHO.
