The first thing to notice is, of course, the artwork, which is gorgeous and rather unusual. It looks much more like old-fashioned children's book illustrations than traditional comic book art: the colors are very pastel, especially in the soft-focus backgrounds, and there's amazing use of light and color in general. (The book is actually dedicated to the memory of Steph Peru, one of the colorists, who passed away in 2008.) Also, as other reviewers have pointed out, the kids are drawn to look their ages, which is nice. 
 It's good that the art is so lovely, because the plot is hardly exciting. There are four stories in this book: the first Titans adventure takes the first half of the book, kids vs mentors, and then there are three small stories in the second half. 
 In the first story, the lesson to remember is that there's a reason "a prepared Batman" is always excluded from the "who would win this fight" arguments. The other lesson is that kids being kids in this book is going to make me cringe in embarrassment every time. 
 In the second story, the lesson to remember is that, in case you missed it in the first story, Robin is well on his way to growing up to be just like Batman. The other lesson is that kids other than Robin being not as cool as Robin is not actually funny. Except for Wonder Girl -- she's still awesome. 
 In the third story, my disbelief was fully suspended. Because the lesson here was OLLIE YOU DICKHEAD WHAT THE HELL ARE YOU TEACHING THAT BOY BECAUSE NO ONE SHOULD EVER TALK ABOUT WONDER GIRL THAT WAY AND EVEN MORE THAN THAT NO ONE SHOULD EVER TALK TO WONDER GIRL LIKE THAT, NEVER EVER EVER YOU FUCKERS. Ahem. The other lesson is that apparently I have some issues surrounding the entirely realistic gender politics of the Titans and their era. 
 And in the final story, the lesson is that the Titans really should be called "Robin and his pals", in case you missed that in the first two stories. The other lesson is that Batman is a bit of a woobie where Robin is concerned, which would be sweet except that we know how that argument's going to turn out in a few years, don't we? 
 But the art is lovely throughout.