Thirded, but it's also funny even if you do
like Mamoru (unless you have no sense of humor about this sort of thing), and Usagi has some hilarious lines in a few chapters.
Usagi: I've been engaged to Mr. Celibacy-Before-Marriage over there since '97! Nine long years! I have needs too, damn it!
Rei: Usagi-chan... I...
Usagi: I NEED SEXUAL HEALING!
** Cue passionate frenching**