I know I've posted this story before, but it's worth mentioning again.
A year or so ago, I ordered two joysticks from Andy. They were shipped very promptly, and I received them much earlier than I expected. When I opened the box, I noticed that one of the joysticks was of the wrong type. I emailed Andy about it, and I offered to ship back the joystick. He shipped me the correct joystick immediately, and did not take the other one back.
So, what happened here? Andy saw that there was an issue, and corrected it in the best way possible -- he took a loss (I'm sure) on the deal to make a happy customer.
I am very happy with him and his business, and would recommend him to anybody looking for great parts and fantastic service.