Haven't posted on the forums almost ever, but have to join the dissatisfied people on this, I'm not very pleased with the changes.
Namely, the lips/mouth area (as others mentioned). Face 4 model behaves very weirdly around the mouth no matter the type, and the lips lack any depth or definition, like they're copy-pasted from somewhere else, shape's different too. Dead-looking eyes as well
Hopefully they tweak this eventually, I'm pretty jealous of people whose characters barely changed xD

Left is DT Benchmark and the right is current: