It's funArvosana 4/5
I like the learning functions, especially the waiting option. In that mode it actively adjusts the tempo to your speed, only the illuminated keys sound so you won't have to suffer hearing wrong notes played (nice when kids are playing) and the background band is good. I don't think the learning functions replace a music teacher but teach some skills. I have no piano experience and I've found it satisfying to play along with the songs.
Veikko