Opinion on 8.0 so far:
Rest in Peace Panzer IV - too bad I can't move my 100% camo crew away from the german line... perhaps it will convert to a TD or a medium.
Currently grinding the US and Soviet Medium lines - enjoying the M4A3E2 and KV-13.
Somehow can't run the game maxed without occasional FPS-sluggishness at close-quarters - but at slightly reduced settings it's quite awesome.
The new physics and graphics are overall great - on certain maps they open up the game significantly, allowing for much more tactical flexibility. Love that.
If gold-ammo wasn't there, and some of the premiums were looked at in terms of bully-tanking, and some of the randomness was taken out from the Penetration rolls - I would start calling WoT a good game.