I have a soft spot in my heart for Stug's. They were actually quite effective little buggers against the T-34's.
I even read a story about a breakthrough of 6 t-34's and only 2 Panzer III's available! One broke down and the other ambushed and knocked out the lead t-34 by shooting thru its barrel then just hammering away at it until they found it abandoned the next morning with all other T-34's fleeing the scene.
Such is the Fog of war that if the Russians knew what was hitting them they would have rolled right on through.