Running OS 10.2.8.3 I downloaded and drag-installed PhotoReviewer to my apps folder. After reading a bit I downloaded the PDF-formatted manual as well.

I made sure all prefs were set to do what I wished and to avoid memory overloading, as it warns (I limited it to 9 files and nearly all mine are under 1MB in filesize, so seemed safe). I had first dragged a copy of ALL of my iPhoto libraries, albums, et al into a folder which I had named Review. This way I figured if I did not like or if I misunderstood this app I could always trash everything it produced and would be right back where I started with my iPhoto files untouched.

In running PhotoReviewer I discovered that:
- Some of the features criticized by posters on the web were not as the critics had said (example: the app DOES let you enlarge images to fill the screen, or reduce oversized images to fit - in PREFS).
- When an UNDISPLAYED file is the active/current file one can't see any change if the subsequent file is also UNDISPLAYED, so for a while I thought I was making no progress, until noticing that the filename was advancing as I clicked on NEXT or VETO, etc.
- I could not Move an UNDISPLAYED file to a User-determined folder during a session, so had to give up that step.
- I was nearly finished with 3,800 files when the app crashed with no explanation. The Modified Time of the folders in question indicated that I had lost 52 minutes of constant work in that review session (!!!). I groaned, and relaunched the app.

It asked me for initial setup as at the beginning but once I clicked START it got to a display screen but could not load a single image before crashing. Numerous tries ensued, including Restart, Disk Permissions repair, re-installing, searching for a .plist to trash and rebuild (could find none, and no instructions in Manual!), re-downloading it...

I'm exhausted and have no idea what I did wrong. This is NOT GOOD BEHAVIOUR by an OS X app, $10 or $50 or free. I have to toss it out, with a thumbs DOWN, alas.