If the T-34 is so awful, why did the Germans enjoy even the worst model?
T-34/76 was held in high regard and also elite units such as Panzergrenadier Division "Grossdeutschland" (Panzer Regiment "Grossdeutschland") used some captured examples as late as 1945. Waffen-SS units also did not hesitate to use captured T-34/76 tanks and 2nd SS Panzer Division "Das Reich" and 3rd SS Panzer Division "Totenkopf" pressed significant number into service. Modifications included installation of commander’s cupola (from damaged Panzerkampfwagen III and IV tanks), Schuerzen (armor skirts) and other equipment such as Notek light, storage boxes, tools, radio equipment and antenna.
Surely such elite divisions wouldn't want to use "the worst tank in WW2"?
The T-34 was not an "awful" design. It was a serviceable and competent model that was produced by a nation that had the industrial/logistical wherewithal to tolerate the many shortcomings of these vehicles under prolonged total-war.
The problem lies in the many myths and overestimation of the combat-effectiveness and reliability of these tanks and the gross exaggerations of attributing Soviet victory in the east (or German defeat) to a few different pieces of equipment. The T-34 no more won the war than the SVT rifle or RGD grenade. These are just pieces of equipment. As long as they function as they are meant to and are not woefully obsolete/unreliable...in the grand scheme of a theater the size of the eastern front...this tank or that tank is not going to influence the planning and execution of strategic operations in any significant way.
Better equipment gives you a tactical advantage...which is good...and tactical victories
can lead to strategic victories...but at the end of the day if Germany had 9000 T-34/85s instead and the USSR produced 50,000+ Panzer IVs...the outcome would likely have been exactly the same.