Sounds like a well versed, experienced builder. You could fall prey to a builder who is the complete opposite and will rush into steps of the build too early that could lead to complications. The builder you are considering sounds like he is well established with his reputation in the area and part of a quality build means not rushing certain aspects of it. This guy sounds like a craftsman type builder rather than a production race track type. It's also all about employees/subs that are onsite as well and their attitude that effects a builders reputation. His reputation obviously reflects on them well.