GREAT!
This is great game, and its not too fast! if it would be slawer i would beat it in first try, but it's not, so on later stages i had to learn hot to play that stage, and sometime more or less what will happen next, even tho i beat it in like 10 minutes, but i'm good at such games. Second part of last game was terryfying at first, but after 5 tries i menaged to beat it with score 95. After while you got used to speed, so don't give up and try. Game is so addictive that on 4 am I finished it without falling asleep and got enought force to write review.
To sum up:
I don't agree with those who claims that game is too fast. It's a bit chalenging, bat steal beatable. Gives much fun, and after reading other reviews i'm proud of me that i beated it without any serious problems (just couple of tries on some stages (second guitar stage i beated in first try, after i menaged to learn it on my 5 previous plays on first part:])).