This isn’t said in slight about you or your friend, BUT I’m just amazed how many vocal coaches are apparently out there… didn’t know it was such a big industry.lmao i've heard him live twice and he's amazing - coincidentally also went with my friend who is a vocal coach (and she was not a louis fan, so completely unbiased) and she said he is very good live.
I personally think he’s average, and has improved over the years but not expecting anything wild or agile from him.