Pros
- easy to understand rules
- nice balance of rules and creativity
- accessible with minimum resources (playing cards, paper, and rules)
- fun environment to build the story in
- creator is responsive to feedback
- mechanics are introduced in a way that's not overwhelming
-The information is conveyed like an older man explaining it to you.
Cons
- creator is responsive to feedback (I know it's in pros as well. This is a double edged sword as a small vocal group of players could ask for a change to a rule/mechanic you like)