Good but...

A few things I didnt like about the app. Previews didnt work on almost my entire library which was a bit of a pain. There is also banner ads in this app which would be fine for a free app but at $2.99 those should be removed.
It seems to have identified my duplicates quickly though and reviewing & deleting them was fairly quick.

VPFreedude about Duplicate Photos Fixer, v1.1.1