Calm, clear, upbeat, confidence-inspiring, rather young, great assistant also. I went in for one root canal but he said it wasn't needed. However, another tooth (#7) that was giving me some trouble he found was totally dead. He did an immediate root canal on that one -- all painless before, during and after! Even when he gave me the numbing shot, he jiggled my cheek so I did not feel the needle. Excellent!
My wife did not fare so well on a bigger, more difficult tooth and had pain for 3 days afterwards.