Edit 2/24/2017:

After more than 4 months of wait, they finally added Teamplay and mod support. As such I am again recommending the game, as the gameplay itself is quite good.

Pending complains are, however, lack of strategy on sea and the AI.

Below is my previous review as is for archival purposes.

As of December 2016, Civ VI still DOES NOT have teams in multiplayer.
Unlike previous Civ games, this means that outside of the buggy, incompetent AI, if you want to enjoy it further, would have to rely on PvP FreeForAll games, instead of coop or organized teamplay.

While the core gameplay is fine, the AI ruins it, and lack of proper teamplay is a dealbreaker for me.

Stick to Civ V complete in the meantime unless you want to tryhard in multiplayer.