Many users on this same forum have had problems buying services from third-party developers. For that matter, not having the ability to evaluate the quality of the code they were then going to install on their forum.
This addon meets ALL the standards of Xenforo. And it has been checked by two of our in-house developers. I have in the past had a VERY bad experience buying services on this same platform (and to my way of seeing it, little to nothing was done to fix the problem).
Were bugs present? Yes. They were fixed in a timely manner. The experience was very positive. And Ozzy and Painbaker always responded in a kind and professional manner, and even some changes (some quite significant) were made after the addon was finished.
This addon is so well written that it was possible for our internal developers to write an addon that extends its functionality.