Simple but to the point. Guitar is right on target. Good Voice. I would change up the pace a little bit to bring more contrast in the song. Just a suggestion.
Let me start by saying this was a very good song, and a very good performance. When I can listen to a song all the way through without wanting to turn it off before the end, I get excited, because I know there's talent there! So I'll get right to my thoughts on this tune...
The first thing that struck me was the clarity of the vocals and the intonation of the vocalists. I could hear every word clearly and the notes were on. The melody was well sung, and the harmonies were on point. In fact, I like the way the harmonies "sneaked up" on me before I'd even realized there was another person singing. The hook was well crafted; before the song had ended I knew the entire hook and could sing along. High scores on all the above points. The songs lyrics were not uncommon, but they are woven very well into the song, and as such, the sweetness and quality of the delivery is what sells this tune. The instrumentation follows the same again, the guitar parts are well written, and performed elegantly with little to no hint of error.