Kv2 is great
Only question I have about it is I cant seem to find good use for turret mode. I get its purpose but it just seems like too much of a hassle for not enough benefit
Unit is really good in regular mode anyway though, so no complaints from me
I play team games mostly so I find the siege mode super handy as it offers so much coverage with very little risk. Sometimes the tank won't target itself but can still use attack ground and lob shots (also great for leading targets like the old brumbar)
Granted my experience in 3s/4s will be very different than yours in 2s where mobility is more decisive