I really hate that change with charging. Just to start with its really stupid, and furthermore it more or less makes initiative into a dump stat.

Of course, im not really certain i trust GW to correctly manage armor save modifiers either. I do recall the games with it, and it kinda felt like anything less than a 3+ save did not matter.
On the other hand it might be a needed change to melee, where i dont like the "either you got a AP 2 weapon, or else your trash" bit either.