Has anyone bought it yet? Is it any good?

Im seriously thinking about it. I have the free version of Amplitube which is ok for lo-fi recordings but the four track recorder has to purchased seperately. Garageband looks like this is included in the price.

Are the amp models etc any good?
I dont think there is a Garageband for iphone, afaik the only versiosn are for ipad and OSX?

But, as far as the ipad version go, its ok and fun for a while. But its very limited, and the amp sounds are very digital souding.
Current gear:
Fender Road Worn 60's Strat
Hohner SE35
Squier Classic Vibe 50's Tele
Yahama FG730S
Marshall Class 5