Alright, I'm about 30 matches in, have the turret, gun, and suspension. I'm really liking it. Maybe not as much as the 110, but still a good amount. It feels like a weird hybrid of the old IS-4 and the current IS-8. It also feels faster than the IS-8, despite the fact that I currently have only 580 horsepower (yay Chinese terrain values!).
I do not particularly like how it takes 46,000 XP to get +20 horsepower and some module HP with the top engine, though. EGLD pretty much mandatory with the slow-aiming 130mm. I'm running rammer/vstab/EGLD myself.
So, the other four people who have one, how do you feel?