Some recommendations:
Per Pathfinder Unchained (and simplifying the rules), I would recommend that the Avenger's Hit Die should change to d10 as well as having BAB = vigilante level.
It's unclear how having a disguise / alter ego would work in a group of adventurers. I would recommend that there should be some options or discussion about how to sort that out, especially when or how an identity is "revealed" to other players.
The Renown ability is highly limited by the type of campaign that is going on. It's probably useless for about 90% or more of the campaigns I've ever been a part of, truth be told. There should probably be some replacement abilities for it.
No favored class racial options *sigh*. Not that I use those much.
