They somehow managed to upgrade animation, yet make all the faces look like some weird walt disney knock-offs, but worse even, is what they've done to the boobs! They were all evenly balanced, there was a scale for every preference, but nooooo, they had to size everything up times 10...
Also, Rias' mother is seen wearing a crucifix in episode 7 which apparently skipped their attention because I think the new animation team hasn't actually seen any of the prior seasons nor read any of the mangas, because it's supposed to harm her severely since she's a demon, yet it doesn't.. AAND THE BOOBS!
A 2 for the effort at best, and perhaps the ost