I find buying only one comic, especially if I'm just starting a series insufficent to get a feel for it, not only that, but I can read the average comic in 5 minutes. This collection of the first five books was definetly enough to whet my appetite, as soon as I was done I went back to the store and bought the other 4 digests. I am eagerly awaiting the last one.
The writing and art are strong (especially true of the writing). Twists that actually surprise you. My only problem (and it's a small one) is the note left by the mole. I find it difficult that the parents couldn't tell from the handwriting who the author was. Other than that, great read, I almost forgot that it was a comic and not a novel. There's a lot of diversity, not just ethnically, (and species wise) but in personality types. Usually teen heros are cookie cutter type personas, not this batch.
This comic series is definetly in my top 5 list of comics.