Wow I found that to be lovely... I guess I'd go 9/10, a little more length would be nice as it's an amazingly relaxing piece but ends rather suddenly, but admittedly no piece of music should be any longer or shorter than feels natural; I really dislike rating things on a number scale lol, I'll just say that it was excellent, lovely, and provoked a number of memories I've not visited in some time that seemed to fit the melody.
What genre would you say it belongs to?
Thanks man! I don't really know, I guess it would fall under ambient or downtempo or something like that with a lo-fi aesthetic