The abilities all seemed to be on the right track, but then I got to the specializations.
Warlock seems like it was made with the Shadow in mind. Stealthy spell casting with shadowdancer-like abilities. But none of it seems to be usable enough. To many spells fighting over the incredibly limited slots available, and living shadow is limited to once a day. On top of it I'm stuck with a spell book.
I'm happy the folks at Paizo seem to be fans of Batman's daddy, but a bit disappointed too.
The devs mentioned that there are potentially more versions and certainly archetypes in store for the vigilante.