Liked him as a kid when I thought he was the greatest rapper of all time, and that rap was all about angst etc. (And he was the first I ever really heard).
Now I'm a much bigger fan of the genre, I think it's more about personality, soul, rythym and cool - and have a hard time listening to any white rapper really. When I hear Em now it just sounds really dated. That said, there've been some masterful songs and his raw talent's undeniable.
Anyone who comes from what he did and goes to what he has is impressive to me, and I think it's wonderful that a kid with very little education can make his escape from poverty using a natural (and no doubt vigorously worked at) talent for words.