I was not satisfied with the vanilla feat list. Some feats were "auto-select at first opportunity". Others were never even glanced at.
I have buffed and reworked many of the original feats, as well as adding in lots of new ones to create a document of 67 feats.
Some of these may seem powerful, but in my campaigns they are all balanced enough (compared to each other) that none of them break the game.
DMs may also like to give their NPCs / Villains these abilities to change them up or give them that extra bit of something that they need.
Of course your mileage may vary so feel free to tweak these as you see fit.