The build quality is of this controller is way better than I expected at this price range. The same applies to the keybed - it feels premium. The rotary knobs are heavy and slow, allowing for fine control. The large display is very convenient and useful. This keyboard is very heavy and that is a good thing - it is stable and sturdy when you play. I use it with FL Studio and was pleasantly surprised by the level of integration. There were some small quirks but I found them easy to tweak, because the integration script can be edited and a lot of help is available on image-line's forum. Finally, I hate the fact that Arturia doesn't offer a variant of their keyboards without the wooden side-panels. That is a matter of taste, of course, but if the combination of wood and plastic is not your thing it can be very annoying. I was thinking of taking one star off of the review for that, but the build quality and features more then compensate for the aesthetics.