This comic features the origin story, Metamorphosis (issues #1-6), of Blue Beetle (Jaime Reyes). You can find reviews for the individual issues elsewhere so I'll focus on what makes this collection volume different than the versions found in the individual issues.
You get to read the same number of pages as in the individual issues but all together at once. The art is sharp, clear, and detailed. But, also the art doesn't change the fact that the "normal world" areas of Blue Beetle are slum-like, dirty, and run down, so it is something of a downer. A shiny-clean city like Metropolis this is not. However, since this is a collected volume you get more pages for your money, and if you don't like what is happening you can just skip it and turn the page. I like this because I found that with the individual issues the story ended far too quickly for me as the pace began to speed up whenever it showed me interesting things.
This book separates the gap between each issue with a page featuring the original cover in color on one side, without title decoration or text overlays, and then the black and white version of the same cover appears on the other side of the page, again without decoration.
I noticed that some of the captions, specifically the informational hints about DC lore and also the comic crossover notes from the individual issues were removed from the pages of this book. I think that missing some explanations and background information takes away from the experience of casual readers who don't know about DC lore, for who I am one of them.
In the back of the book there are a few pages of character art: 1 color page of Thorax, an enemy, and 5 pencil sketches of Blue Beetle in various poses.