I like the the optional Feats Option Rules....I think it adds a lot to character customization. There are some seriously game imbalancing feats that are still in the game from 3.0. Managing feats is going to be a case-by-case basis. The vast majority of feats will be fine, but please check with the Game Coordinator before selecting a feat.
General Principal: Feats for flavor, but otherwise denied for power-gaming.