Compare the T34 to the Ost P4 and suddenly the T34 doesnt look so bad.
3x more DPS (far) on the machineguns, 1 sec less reload time for the main gun, Blitzkrieg with vet1 and armor increase with vet2. 10 penetration more, 0.50 lower scatter, 30 more armor points.
Still looks bad to me.