I loved the series! By far, this is one of the best anime I've ever watched. It also was one of my first, but despite that, it's still an amazing anime. The storyline was realistic (not the entire Diclonius', but the relationships etc.) and I loved how you could see Lucy's soft and sweet side at the end, when she kissed Kouta. It's sad that she suicided, but in the end, I think it was her behind the door.