This is one of my favorite manga/light novels I've read. Story: It has a good story, the end is a little too cheesy for me but before that it's incredibly interesting and amusing at the same time. Art: The art is great if it's your style, this isn't really my favorite style of art, but it's still very good. Character: Character dev. is done rather well. The line is usually rather simple to read, but sometimes the amusing parts kinda get mixed and you have to re-read the few pages (or in the light novel's case, a chapter).Enjoyment:
I thoroughly enjoyed this, it is one of the few that have caught my attention for more than a few months.

Overall:
If you're into this genre, it's a good one. Of course, I'd recommend you read the light novel first rather than read the manga. It's long, but worth it. Trust me.