So I thought I'd give it a go with new Vicky.

Lots of things that I like, the new shader set up seems to give great detail and the eyes with the new tear mapping are super. I seem to be able to pull out a lot more of the skin texturing in regard to bump & normal no matter what lighting I use and am definitely seeing the HD details more clearly than on V8.
Boobs seem a lot more natural, she's not going to knock herself out if she goes on a trampoline.
I tend to use a lot of detail morphs - Auto Shape Enhancer, Skin folds and creases, bend morphs and bits and pieces to get vascularity and details in hands, wrists, ankles and toes. Some of these morph sets work fine with V8.1 but unfortunately some definitely do not.
Some kind of compatibility list is begging to be written. So far though, am definitely seeing improvements but want to see textures for her by my favourite vendors. That aren't quite so orange.