This is actually a really nice sounding song, and the main reason I'm giving 3 instead of 4 or 5, is because in many areas the drums take away from the song. I'd say that the first minute and 20ish seconds wouldn't suffer at all from the removal of drums. The tune is nice enough, that it doesn't need the support of a drum beat. Of course you have somewhat of drop near 1:30, and that drum beat sounds nice. Suggestions: At around 3:00, when the jazz starts leading the song, either weaken the drums or take away some of strikes so that it's not blotting out the rather lovely song.
Please contact me if you would like to use this in a project. We can discuss the details.