Since talk is cheap, I would like to offer my thoughts. I will be the first to admit that some suggestions are not possible, but maybe some are.
First, If I were a potential customer I would want software that practically installs itself. Many people are turned off by complicated installation instructions.
Secondly, I would want options that are "clickable"...no direct coding in various files. Not many users want to take the time to learn PhP, perl, or other languages.
Thirdly, I would want my patrons (users) to use the forum with the least amount of work on their part.
I realize these are very general suggestions, but maybe they can serve as a roadmap for future improvements.