Evangelion is... Evangelion. It's the kind of work that is very hard to apply adjectives to. That said, it's very good.

Just be sure that you watch The End of Evangelion after watching all the episodes. I have a friend who watched all the episodes of Evangelion, then went around for quite some time thinking he had finished watching the whole show. Only months later did he find out that there was more, and that he had in fact missed out on the entire climax of the show.