This is a list of things that I (meleu) check when someone ask me to have their Achievement set reviewed.
Quite frequently the set is for a game that I don't know very well (or don't know at all), then I created a list of items that can be checked by using what we have available on the website, namely: Code Notes, Titles, Descriptions and achievement's logic.
Some items here are not exactly strict rules, but points that I look at and give advices when applicable.
(Special thanks to Keltron3030, televandalist and BenGhazi for suggesting more items to this list.)