This is one of those anime where the idea was much better than the actual show itself ended up being.
It gets a LOT of flak for "one dimensional characters" but i think that's a lot more to do with the short run time than anything else. Had this been a 24 episode series it would be even more amazing than it already was. As it is, it's my absolute favorite "harem drama" and what i would gladly call important to the genre as a whole. It takes the harem genre and pulls it aside, forces it to examine itself and say "no, that's not how that would happen". It's by far the most realistic depiction of what would happen if a fairly introverted high school boy started dating the most beautiful girl in his class, followed by other attractive girls basically throwing themselves at him.
It's easy for guys to white knight it and say "no way would i act like that" but saying and DOING are two different things. This show felt more honest to it's characters, as one dimensional as they were, than any harem anime i've ever seen has. I also have yet to see ANY harem anime that DOESNT pack itself to the gills with one dimensional trope girls, so even that excuse doesn't stand.
Either way, all in all this series moved me, to tears in more than a few places, and will always be one of teh best, most important anime i've ever seen.