I like this plugin a lot. It was easy to get set up and running on my site. But I had to go in and tweak the CSS quite a bit to get the photos to display without a huge gap between them and the previous text and to remove the white background (which my site doesn't use).
Also there is no timezone set which causes an error in my PHP when I load the overlay photo.
If the CSS were made a little more generic and the timezone were configurable, I'd give this 5 stars.