Not bad at all!
You're indeed right, the song was held back a lot by the recording equipment. It does sound like you must have done some editing in a DAW because I think I hear reverb. If you did edit it, you could probably have improved the song by boosting the high end.
Audio quality aside, I rather liked the song. Very relaxing, it made me picture living in a house by the highway in the summer for some reason. The only thing about the composition is that it never quite seems to take off. I think perhaps you played a lot of it spontaneously. It shows in places where you play the same note over again in sort of a stuttering kind of way rather than being adventurous and branching out.
Anyway, I made a lot of assumptions with this review, I suppose you can let me know if I was right about them. If I'm totally wrong, I'm sorry to have annoyed you. I'm still learning.