M-Audio Oxygen 49
I'll start off by saying that this has been the easiest to use recording item I've ever used. Plug, and play. I'm on a MacBook Pro, and all I had to do was plug it in, and it worked no problem.
Not sure how anyone can judge this for this product, seeing as it makes no noise. I guess their software instruments must be terrible? It's only going to be as useful as you make it.
Ease of Use:
As I previously stated... EASY!
The keys are nicely (semi) weighted, and go very smooth. It's A LOT better than all the other controllers in its price range, for sure! ESPECIALLY AKAI!
My only complaint is the control surfaces on it... They're kind of hard to reset, and just aren't worth messing with, unless you want to use some sort of learn function. I just use the mixer in Logic.
Bang for Your Monehz:
Great buy! I got mine on sale from Guitar Center, for $106 after tax! I walked in planning to get a 25-key Akai, and walked out with nearly twice the keys (full sized, might I add!)! Try to find a good deal on it, because I'm sure there's plenty out there. If you can't, it's worth the $150, in my opinion.