I don't agree as it's relly awesome!
I was excited with it's speed and design.
Songlist it also much richer than in the 4th version.
Loved that.
Those, who don't like it are just not skilled anougth in basic rythms
Its an OK app. I wouldn't have wanted to pay for it to be honest. (Its $4.99 I think) I can think of some other apps that are a lot better at the moment that I already don't have.
Its fun for a little while. But being free for a day just means if I ever wanna play it I don't have to pay for it anymore!
So yes if you did not pick it up for free then I would think before just downloading it. Try out the free version! (I am pretty sure there is one?)