This product was bought to fit my Kawai MP11SE, and it fits it perfectly, not too tight, not too loose. The overall quality is good, it gives it some protection, and helps reduce the dust buildup quite a bit.
The only reason I've not rated it a 5/5 star rating is that I live in a heavy dust environment (courtesy of a parrot), and a bit of dust still gets through the cover. Honestly though, for 95% of people, I think this will not be an issue, this is more of an extreme use case scenario, and it still holds up really well.
