It's amazing what a face to face conversation can accomplish. So much is lost when people talk electronically. It sounds like this went very well and the rapport you built with him over coffee will probably go a long way in the business relationship. 👍

This part is kind of funny. Challenging though when you're not on the same page, or don't have the same working style as someone.

He had thought I was moving too fast, (I had thought I was moving at a snail's-pace), and he felt unable to keep up.