I am not sure I'd understand why anyone would go from a Corsair H70, which is a wicked cooler, to an air solution that's about twice as large. Either way, sorry to hear about your troubles, martin. As Optix says, it definitely pays to read the reviews, although in your case, it seems like you got a bad unit given the lack of a totally flat base.
Intel Core i7-3960X, GIGABYTE G1.Assassin 2, Kingston 16GB DDR3-2133, NVIDIA GeForce GTX 770 2GB
Kingston HyperX 3K 240GB SSD (OS, Apps), WD VR 1TB (Games), Corsair 1000HX, Corsair H70 Cooler
Corsair 800D, Dell 2408WFP 24", ASUS Xonar Essence STX, Gentoo (KDE 4.11. 3.12 Kernel)
"Take care to get what you like, or you will be forced to like what you get!" - H.P. Baxxter
<Toad772> I don't always drink alcohol, but when I do, I take it too far.