I received a week ago, I thought to intro version of ableton but because it is bundled with the APC20 for a fairly reasonable price finally, I cracked!
The product is (as often with Akai) very well done and gives a real feeling of solidity with thick rubber sidewall.
The APC20 is plug and play, both on mac and pc controllers are well thought out, there is also a mode "note" very valuable that can be used as a traditional keyboard.
So I might even sell my midi keyboard, but we must admit that we are a little lost because of the lack of reference to play (not black, obviously), more the APC20 does not support the velocity.
This is still a great all in one for those who mainly use Ableton Live. The price / quality ratio seems very good.