CptMace
Self-Ejected
As any 2x level, you'll get to pick a talent. Afaik the only level that unlocks new talents is level 4 but might be wrong. Most of 'em don't do much shit anyway.
There is an AI improvement, it's just not enough for it to be any good. Foes still run around in the wall of flame and shit like that.
However I haven't played between the release version and 2.0 so maybe it's actually been improved long ago since then.
Also, whoever said the AI is "better" and can't be killed by Tank and spank is full of shit. Enemies run past tanks about as frequently as they did in Original PoE. In TWM, they do it more often, this is true, but zero improvements were made to the PoE base game monsters. They still mostly just engage your front line and commit suicide by trying to kill the fighter.
There is an AI improvement, it's just not enough for it to be any good. Foes still run around in the wall of flame and shit like that.
However I haven't played between the release version and 2.0 so maybe it's actually been improved long ago since then.