If you expect anything more than a harem anime from this harem/comedy anime you're in for a bad time. The problem is that this anime serves up some plot faster than you can pop a pop tart which drag down the harem/comedy that starts out strong.
We can sum this anime up as quoted from a character: "I found the rest but I just can't find my panties[plot]." ...possibly because the plot is like air, its everywhere but you can't really see it, just feel it. Yeah I don't really get this analogy either.
What could have been a half decent harem/comedy anime with a semi interesting main character (because he's not the goody do-er that's overused in these types of anime) instead attempts to focus a little too much on overall plot which leads to its downfall. Though it bombards the viewer with girls of all types and interests leading to sexy scenarios with our MC, the overall plot keeps driving new developments that take away from the comedy and harem aspects that the first few episodes excel at. And obviously nobody is really watching this for the plot. So turn off that brain and watch a few episodes if that's your fetish. Otherwise there's better anime other there for either harem, or plot, and maybe a bit of both as well. (Sekirei, Familiar of Zero, Kampfer, World only God Knows, Rosario Vampire, etc). By better I mean, at least the pacing and the story are told better than this anime.
Story - Starts off strong. Rapid development after first arc is as unexpected as its unnecessary. Ending even more rapid than the middle episodes. The ending is so extremely rushed even the fans of the series audibly complained about how a second season could have been made out of the last 5-6 episodes alone.
Characters - Lots of characters. Character development on the four that stand out the most is actually decent. The bad: Rushed plot means extreme change with several characters that is so absurd and uninteresting that you'll lose interest in them..
Art - Some of the fight scenes were well animated. However, equally there were many scenes that were lazily animated as well (not talking about panty shots though).
Sound - Its fine, nothing special here.
Enjoyment - The most enjoyable parts of this anime were the first handful of episodes which was strictly more about harem/comedy than whatever the plot is supposed to be. The action was "ok". Generic at times and not very memorable.
OVerall: I would have given this a 5 if it only considered the first few episodes where the anime starts off strong. Unfortunately the last four episodes brought it down a notch with its pacing.
Watch this: There is a dragon named Peterhausen. If you'd name your dragon Peterhausen then you should definitely watch this.
Dont watch: There is a dragon named Peterhausen. If that sounds like a stupid name for a pretty awesome looking dragon don't watch this.