Lunky was extremely polite from start to finish =). He approached me with interest in Bastion and I had no issues coming to a fair trade with him. He even tossed on an extra $0.25 tip, which as small as it may be, is a huge number when you know that there aren't many people that are willing to go above-and-beyond.
I definitely felt as though his consideration, politeness, and fairness makes him a very trustworthy person. He is as nice and respectful as the other traders say and I respect that =).