Somehow the content can be defined as just screenshots (as long as you consider single pictures as screenshots).
The entire book is just that, a collection of singles. The artwork isn't excellent, but it's still good, fairly above average. Of course, there is no story at all; however, we are presented with many different characters and settings, which is good.
Overall, it's a very nice view. Too bad there are no more doujins from the same circle: just 20 pages of single pics leave you wanting more.