I bought the piano in October 2018 and after 2 years 4 keys have problems: they sound loud no matter how soft i press them, this doesn't happen with the other keys (yet). The keys with problems are not in the same place, they are scattered over 3 octaves.
This is a shame since the piano is really well designed, sounds are very customisable, interface very intuitive and piano, drawbar, organs etc sound really good.
I don't use the piano professionally so I find it unacceptable for a DP to have problems after only 2 years of home practice.
It's still under warranty, thanks to Thomann's 3 years warranty policy but I have to send it in for service and it can take up to 6 weeks to get it back fixed during which time I cannot use my piano..
Hope Kawai will fix this for the MP7SE and other DPs they sell otherwise customers (me included) will surely move to other more reliable brands
2024 Update - After fixing the piano under warranty (rubber contacts replaced) the piano has had no issues since.
Hope it will stay like that!