Well I still watch harem shows and find enjoyment in them of course, but Narue was just a real gem for me, I enjoyed it immensely simply because it didn't do some of the incredibly annoying things that harem shows often do. I won't go into detail as it's better to watch it
One thing though, you'll probably understand why I like Kazu-chan (main male lead) so much when you see the last episode (and the rest of course, but the last episode really is what sealed it for me).
Meh, I'm going to stop rambling now. Suffice to say I loved the show