Yes, I find that Kawais frequently punch above their weight. For whatever reason, they have a lot of music in them!
It does depend a lot on the music. Bach designed his music to work on a wide variety of keyboards, and so it’s no surprise it can work wonderfully on the the electronic ones; they often bring out something new if you let them be themselves instead of treating them as an imitation acoustic! But I’ve never managed to get a Chopin sound I like out of even the highest-end electronic keyboard.
P.S. What I said about “alternative not substitues” goes both ways, of course: an acoustic is a •terrible• imitation electric! Beyond the practical considerations of space, ease of moving, and silent practice, there are worlds of sounds in synths.