To be honest, I stumbled across this anime by accident. I wasn't specifically looking for it, in fact, I never knew it even existed. However, I did (and still do) read the manga from which it is based. Had I not read the manga, I might have a different opinion about it. Therefore, I will try to "review" this anime in two ways - one in comparison to the manga, the other not.

Firstly, in comparison to the manga, this anime is by all means utterly horrible. It does not do the manga any justice. It is so far off track, that I will go as far as to say that the only real similarities to the manga are the characters, and the reason for the main character to "adopt" the three girls (his nieces). Other than that, nearly everything is different.

The manga IS restricted to 18 and older. It is an adult comedy, with a focus on ecchi humor. Nudity and foul language (and sometimes, violence) is very common, yet it is done very well. In fact, the manga is one of my favorite on-going manga's. It's hilarious, and highly entertaining to read. (As well as, as I have mentioned, a comedy aimed for adults!) The anime is in every way, a conversion of what is brilliant, into a stupid, fit-for-all-ages feel good comedy/drama.

Now, if you haven't read the manga then perhaps this anime may seem decent. The story which the anime follows is solid enough for it to work. (Even though, as I said, it doesn't actually follow the manga.) The animation quality, as well as the quality of the drawing is reasonably good as well. However, the largest issues for me was the voice acting and the music. It's cringe worthy, at best. Especially the voice acting. (Japanese, of course.) Also, the ridiculously over used scenes where a girl falls, gets embarrassed, and then screams. Or gets seen changing, get embarrassed, then screams. I call them the "forced embarrassment and cheap attempt at humor" scenes. They are FUCKING RIDICULOUSLY over used in this anime. I would say that the anime is very "skimmable" (when you skim through an episode to see the gist of what's going on instead of watching it.)

My recommendation is the following.
If the summary of the anime interests you, DO NOT WATCH THIS ANIME AT ALL!
Instead, read the manga. It is far more entertaining, much funnier, more mature, makes more sense, the story is better, you don't have to hear the shit voices of some of the characters, and doesn't end after 12 dreary, very "skimmable", uninteresting, and annoying episodes. (show less)