I tried to post this last week, but the forum ate it.
I ran a session last week (level 1 oneshot, 4 players), and it went well. The biggest problem I noticed is that everyone, including me, found the diagonal movement rules to be cumbersome. I like that it's more realistic, but how much does it really matter in practice? Has anyone tried houseruling 5e-style movement in? Alternatively, what about hexes?