@vanderzee, you sure have figured it out - button and 'click' send note on/off, so are recognized by note on/off watchers.
Well, the christmas gift to myself arrived yesterday and it was fun to unpack (nice package), installing the software without problems and to see my configuration, done by the cool magnetic connections, instantly appearing on the screen was impressive. As well I did not encounter the power-problem Alois mentioned, so everything worked like a charm. But what worked? You guess it, here is the end of the positive part.
These sliders, dials, knobs in their fancy housings are of very poor quality. If you look into the gap of the slider, there is no dust-cover, you see right through to the resistive element, so heaven knows how long they will work before crying for contact spray. The axis of the dials are not even perpendicular and so wobbly that you ask yourself if it is alright to claim the 'click' job of these poor guys. For dramaturgy reasons I have to quote a tweet of a 'customer', shown on the palettegear-website: This is the kind of quality & simplicity that Apple would put out. No. Whatever you think about Apple. No. To the knobs: their tactile impression and sound immediately reminded me on the very first push that I had spent 299.99USD for the 'expert-kit', 29USD for shipping and 69€ of german VAT on top - so why does it feel and sound like 2.99USD?
To summarize: it works, looks great at first sight and might make sense for the intended use with the Adobe (rent me till your bankrupt) software, but if you are looking for midi-controllers, buy anything else for a fraction of the price.