Is he a nice guy?

No...but I bet he is a nice person. He's a great actor.

My husband and son met him after his Broadway show All the Way. He spoke to, gave autographs, and had pictures made with anyone who wanted him to outside after the show. A real stand up fellow and very cordial and appreciative.

I don't think a fan-encounter is very accurate since it's usually a snap-shot view of how a person is acting or just happens to feel at the time, but it seems like everyone that works with him loves him, even long-term situations like Breaking Bad, Aaron Paul is a confirmed all-around nice and cool guy and he loves Cranston.