This is really amazing. I love the laid-back groove of this one.
To be honest commenting on the mix is not really my strength, so I'll tell you the other things I hear.
The backgrounds such as "None at all" sounded a little off to me. The rest of the vocals sound professional-grade, but not those. I think they need to be roughed-up a little or something. Less in-tune with each other, or an element of "spoken" (or whispered) rather than "sung".
I also wished there was a stronger downbeat to make the song a little more driving and offset the extremely laid-back feel. Either adding something like kick or making the guitar part louder on the downbeat.
Regardless, this was super good!