I bought this one for my daughter, as she's learning to play keyboard. However, her previous keyboard had two problems: keys are not dynamics and the piano sound is terrible. This proprietary digital piano from Thomann solves the problems, as the keys are dynamics and the sound is very good.
So, why not 5 stars? Because, in editing mode, I could change some parameters but not others, most importantly, the dynamic response (too sensitive!). And there was not so much help from the instruction manual and from the customer service (usually fantastic).
Anyway, highly recommended as an entry digital piano.