Watch it to the end. It's one of the only anime I've seen with a really solid, realistic(?) ending.
Story goes to 8 because of the odd pacing at times, and for a portion of predictability, but at the same time this anime does thing you must never do in anime and you hate it, but it just ends so well you can't help but enjoy?get into? it.
Knocking characters down a point because of those cancerous laughs.
Don't listen to the bad reviews; try it out. Awesome main character, awesome bad guys/misunderstood girls(yeah, they're the same thing), harem done in a way you don't despise your existance... it's good stuff!