Some people I work with and myself have been messing around with it and it's actually been pretty accurate. It was myself (27) and two females (24 & 30). It consistently guessed 26 for me, 26-29 for the 24-year-old, and like 35 for the girl who's 30.
It reminds me of that app from a few years ago where you take a close-up picture of your own face, and based on the spacing of your eyes, cheekbones, mouth size, etc, and algorithm spits out an "attractiveness" rating from 1 to 100. It wasn't always very accurate or reliable... I remember the creator was on the Howard Stern show and they had some fun with it. They took pictures of inanimate objects like halloween masks and it gave some pretty high ratings
Waltraute :
I tried the same photo at high and low resolutions and got results ten years apart (low res is best). I think women who don't wear makeup maybe lose out?
Yea I think a lot of weight is given to "fairness" of the skin. Which is great for people who wear lots of makeup.