Oops! Just saw this!
1. Huge improvement over the last singer, HUGE. And that's a live performance vs studio too. So that's a double plus in his favor so far.
2. I only heard one slightly off key note at the first listen.
3. He has good phrasing.
4. He feels very natural.
5. Youngish and good looking, not important but it helps.
6. He has a little bit of a Aaron Lewis from staind thing going but it's not as stylized or corny. It's just a little bit cheesy. But you do have to have some kind of a style.
7. Now as for the song. It was too long. And I kept wanting a bridge. I;m guessing that was his song. So that speaks about his writing. And I kept wanting his melody to go up after a while.
8. I'd say grab a hold of that guy and write, record, and perform! He seems like he could be part of some great music. He's a solid 8.5/10 in my opinion.
Looking forward to what you produce with him. Best of luck!