The story is exactly the kind of stuff that I love. A decent, average guy that gets thrown into a world where he has no idea what's going on.
The great thing about Princess Lover is the fact that the protagonist isn't one of those clueless airhead guys. He knows that the girls around him love him, Hell they even say it to his face, and hes man enough to take it into consideration and go with the flow. He doesn't hurt them like other guys do.
I would highly recommend this anime to anyone who is interested.