BB wise, the soviets are awesome to play. They have arguably the best BB4 which does need tweaking, A BB5 which is very competitive, and a recently buffed BB6 that does a 64k salvo.
There will probably be a few adjustments, and they are not in the completely overpowered state they were on release, but they are definately competitive; like any ship, you need to know how to play them. They are slow and sluggish, but smash through armour, have great range, and pack a punch.