Author's Response:
Actually, I'm often hard on myself >_> I just feel like there's always room for improvement (and there usually is).
Yeah, the shitty sound remark WAS about that airy thing you mentioned. I'm not exactly sure where it comes from, but whenever I make songs with this kind of saw bass, I notice it. The other thing about sound is I don't really know how to equalize properly.
Anyways, thanks for the quick review (less than a minute since I submitted the song :D). I'm glad you enjoyed it.