This collection is great. Their jackets even look more insulated! They don't stick out like sore thumbs on half of the maps, since everyone likes to choose this for dust (very weird).
It doesn't seem to affect performance at all.
All-in-all, I have to give it a 10/10. There's nothing to improve; it simply improved on Valve's model by making it stick out less while still making it a good arctic camouflage.
The textures don't really look good. They look blurry, plain and simple. The pants could have been reskined as well, they don't look good with the jacket which looks totally different. Colors are odd as well.