Awesome. I got a KV a few days ago, but I've been almost stuck since. It feels SOOOOOOOO incredibly heavy and slow... If you turn it, you'll quickly slow down to around 4 km/t! If you climb a hill, which isn't even very steep, it'll usually go below 20 km/t. The turret takes a year to turn around.
It feels great to bla st the cannon, though (I upgraded to the most accurate one on its tech tree). And the enemy shots often jump off its strong armor, which is great too. But most of all, the program has made a lot of random crashing lately. I'll try fixing it by reducing the graphics soon, then I might be more active again.
It's very hard to get started in, I think, because it feels almost useless in the start, so you only get 100-200 xp. But sometimes when I kill an enemy heavy, I get like 1000 xp. It's starting to feel better now.
But be careful not to get flanked in it.