Oh, hey Mariah!
I love this! It's so smooth and beautiful. It also works with the kind of music that is finding itself more and more popular on Top 40 radio. This whole organic, simple, feel good music that just hits your soul and makes you want to sing along. Can't forget to mention the R&B sound that is coming back to Top 40 as well.
My only negative is that I wish she would have sung first then Miguel since it's technically her song. However, I understand the reason why they did so. They needed it to start off smooth and hit with a climax which Mariah's vocals provide.