Although I hadn't expected DNAngel to be sth extraordinary or exceptional, it amazed me with its romantic storyline, funny characters and not that fascinating fighting scenes. But all in all you wont regret it if you watch it.
I have to say, though, that the storyline really resembles the one of Kamikaze Kaitou Jeanne. In both animes there are angel-like characters and they're trying to destroy the evil in the works of art. They are unable to confess their love to the ones they cherish and they have an animal/angel to help them out at the missions. Daisuke seems to me as the male side of Maron.
Besides everything I've written so far this anime's enthralling more with its romance and comedy not that much with the actual plot. As for the love scenes, I'd prefer if Risa could be with Dark at the end of the show 'cuz they're a really cute couple :)