The quality if pretty good, but the song could use some filling out, with a fuller acoustic sound, or maybe some bass guitar. Also, it's be cool to hear a cello or some lower end strings going on, maybe even bass cello.
Also, I think a song driven so much by melody like this could use harmonies.
I don't know if someone has said this before, but this reminds me so much of Goo Goo Dolls, especially the first song posted in the thread.
My first listen and I listened to the first post you made (all acoustic) which is by far my favorite. I am a sucker for a good sounding acoustic song (especially with some killer harmonies)..
Anyways, great vocals and overall great song. I know this was said bu I really thought I was hearing the goo goo dolls unplugged at first