I think both systems are interesting for the tactical gameplay, that is a bonus when either "facing" the back of a character OR flanking with an ally.
I am somewhat on the fence, but the flanking logic is more "solid" in the sense that otherwise it can be easy to move to the rear of a character that cannot turn until its turn.
With the "facing" system, the tutorial needs to teach the player how to choose where you face before ending turn (I discovered that after 25 hours).
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nb : in the tabletop game I play in, we went for the homebrew +2 to hit when flanking with an ally, as we felt Advantage was too much... Yes, that means Rogues need to find various tricks or surprises to get Advantage. In 5e, it is easy to run around an enemy and flank (you do not provoke AoO for moving around adjacent).
Last edited by Baraz; 14/10/20 02:05 PM.
