The keyboard works well and has many useful, upcoming features. Its shortcomings are that the pads do not have aftertouch, which would have been nice to have, and that it does not have Bluetooth connectivity, but that is not important to me. At the same time, it does not have its own sound, although a simple FM synthesizer could be useful. The most problematic aspect is the noise when pressing the keys, and some of them squeak due to poor lubrication. Otherwise, it offers good value for money. My first order does not switched on, and it replaced with guarantee, no extra costs, thanks to Thoman!