I would have rated this game as a solid 7 if the game wasn't so short. It seems like about 5-6 hours maybe less. The game is short and its easy.
That being said there are a lot of complaints about the game which deal more with wii vs ps3. Someone on gamefly was complaining about graphics, that is a duh. The ps3, xbox 360 has better graphics that is always going to be a issue when comparing across platforms. That really shouldn't be a valid issue unless you have a ps3 or an xbox 360.
Button mashing????? I didn't find any button mashing. There was some reaction prompts where you have to wave the remote in one direction or shake the nunchuck and remote. Neither is button mashing. I'm guessing on ps3 it would be button mashing. This was far better an experience than the reaction parts to GoW3. (yes I have a ps3).
The controls are fine for someone used to wii. If you aren't go play it on ps3 or xbox 360.
The game is solid, but its short. It is probably one of the best I've seen in a while for jumping. It puts GoW 1-3 and Dante's Inferno to shame on platforming.