I believe that Loveless is MUCH MORE than just some shounen-ai story. It is so much deeper than that. It really delves into the life of a young boy who is lost in the world. Ritsuka's real name being Loveless is a strong showing of that fact.
I have to say that sadly, I was confused a few times while watching this anime. And many people I have talked to get very upset about how it was ended. They say that there were too many questions left unanswered. But think about it, in real life, there are always more questions that have not been answered.
STORY: I have to give this a lower rating because, although at the start the story moved along very smoothly, near the end things got very confusing. At first it was simple. Ritsuka lost his brother, and his fighter Soubi came along because Semei ordered him to. And they fought enemies. Not too hard to understand. But then new characters were introduced and they brought up even more questions, half of which never got answered.
ART: AMAZING. The colors used in this anime are simply awe-inspiring. The way they portray Soubi as a butterfly and they show it in beautiful colors is just wonderful. The characters are all well-drawn and very cute/handsome (in Soubi's case) The noses bug me a tad, but I'll get over it. :)
SOUND: Also great. The OP song is one that I actually always listen to every time I watch an episode. When romantic moments are occuring throughout the course of the season, they play very nice background music. Same with sad moments. The music goes along well with the mood. And not even one of the character voices are annoying! Not even Yuiko. And that surprised me.
CHARACTER: I think that if I could add more favorite characters to my list, EVERY single character from this anime would be on it. There is such a good mix of personailities, from the shy Ritsuka to the serious Soubi and the playful Yuiko and the HILARIOUS Yayoi. The way the characters all relate is very nice as well. Although at times, I was confused at why Ritsuka would just let Soubi kiss him and whatnot, but still... very good interactions and love triangles. It's the whole grade school, "I like her but she likes him..." ordeal. And I sometimes like that! It makes the story much more light and humorous.
ENJOYMENT: I gave this a 9 because for the most part, I was very entertained. There were a few episodes where I did not laugh or almost cry at all. But something kept me watching this anime. I think for the most part it was the characters. But I enjoyed the fights and the love between Ritsuka and Soubi. I just wish there had been more episodes to enjoy.
Overall, I give this anime a 9. Oh... and lastly, go team Zero! *squee*