The KV-220 is a beast

... well worth the grind:

It's a heavy tank as it sould be: 

Can penetrate with good effect, is most difficult to penetrate at BR if positioned correctly and albeit slower than mediums it is maneuvering well.

It's a brute force tool; you can fight your path to the objective at your BR.

If used smartly (patiently), it can do much even well above its BR:

 Crucial context: The BR of the match was +1.0 !