When I was a teen I obviously loved him, but for the wrong reasons (looks, lol). So when for a while it became "uncool" to like Leo (he wasn't really working much, anyway) I found it really easy to turn back on him.
But NOW I like him again because he really is a wonderful actor! He was already a good actor when I liked him as a teen, but at that point I had no eye for acting talent and only for cute boys. Now I can appreciate his acting both for the movies that he did over a decade ago and his more recent work.
So yeah, I think he's awesome. I also still find him attractive, but now it's sort of his talent that makes him more attractive in my eyes, if that makes sense.