Even though I greatly enjoyed the manga, (personally) the truth is that the middle part, and really only the middle part, is incredibly painful to read. The comedy gets really stale, real quick, especially after the 7th police gag, and it's also when you realize that the "harem" part of the manga feels absurdly forced. That being said, the characters are likable, the plot is great and pretty damn consistent, all things considered, with a climax and title drop that's possibly one of the best I have ever experienced. On my first read, I completely skipped the 70-or-so chapters in the middle and was still left with a great impression, that should tell you how amazing the ending and the premise are