It has a bit of a slow start; not all of the main characters are introduced in the first episode. Also, all episodes bar about 9 are fillers, or not essential to the overall story. However, this is where all the comedy comes from, and the fillers make for a nice break in-between the gripping storyline.
The characters are fairly basic, but all have their own intricate past which is revealed at various points throughout the anime. This makes you feel like, once you start watching you can't stop, you need to know what happens next.
I thoroughly enjoyed this anime, almost solely for the three reasons mentioned above. Watch it. You won't regret it. And, being only 26 episodes long, it won't take you ages and ages to get finished.
