I am pretty excited about this AD-31 prime, the in hand pictures look pretty good to me.
You can always trust Takara to make a turd shine.
Just got my Armor Knight Optimus Prime (thats the final name of it). Nice remould with great TT quality paint apps. He is a slightly darker shade of blue than AD01 like how Buster Prime is darker than standard ROTF Prime. The swappable face plate/mouth should be standard on all movie Prime's.
I have a list of all G1 characters that have been released in CHUG form. You can find it here. Please feel free to let me know if I got anything wrong so I can fix it.