If you like comedy in your stuff, then you owe it to yourself to check this out. As with most things the first few chapters may seem a little shaky at first but stick with it, IT'S WORTH IT!
The characters all develop very well and are highly unique and the author uses all of them hilariously. My personal favorite character in the manga is the closest thing to a comedy antagonist I've ever seen, a candy addicted super demon principal.
Unlike many harem type manga not EVERY female character under the sun falls in love with the MC (which is kinda refreshing as those six way love battles get old) a good chunk of them settle solidly into non-romantic roles. That being said there IS some romantic competition but the notable thing is it's not the majority of the girls.
If you'd like to get a feel for what this manga is about without having to read the whole thing I would suggest you read chapter 51 "Let's Save Earth!" It's a single chapter story that involves all the characters (other than the boy MC) and more or less is a solid example of the type of craziness you can expect from this manga. However I recommend just reading the whole thing.
A serious strong point in this manga is its comedic timing and various reaction faces. The reaction faces in particular are some of the funniest things I've seen as they vary wildly from situation to situation.
The fan-service is light, usually funneled through a very specific character and even then it's usually there more for a joke than anything else. You won't find yourself being beaten half to death with it.
Overall this is a very strong comedy manga with a fairly sweet romantic story line.
