One minor glitch. Rated 3 out of 5 stars
One thing I noticed with this is that it does not work very well when you use a picture that you've tinted. I had a black and white photo, which I then tinted to a shade of purple. While it is fairly easy for me to pick my scheme, I still wanted to try it; I wanted to see if it would throw back something subtle and useful. It didn't.
So while this works with colourful pictures, it does not work with very well with tinted hues.