I don't like the Half-Elf primarily because their racial traits don't make any sense. +2 Con? Where the hell did that come from? And on top of that, they got one of those lousy, "aura" like +1 skill for allies abilities, which I really don't like for several reasons. The dilettente feature is also really odd. I can see why they'd be given a very flexible feature, but why does it have to be an ability from another class? I think a bonus feat or skill would have made more sense, and been more in line with their human heritage. Instead of creating a race that really feels like a half human, half elf, what they came up with feels to me like a very bizarre and contrived race.