If by run-up to the war, you mean the second world war, Hitler had no experience of tanks that i know of. He had left Austria and joined the Bavarian army at the time of the first world war, and no tanks were used on the Bavarians' front. As for what tanks the Germans had in 1939-40, they were pretty inferior.
The Panzer I mounted two machine guns, was powered by a gasoline engine (which means it lit up like a Christmas tree if it got hit). However, the French, who had much superior armored fighting vehicles, had spread their tanks out piecemeal to their infantry divisions, and then relied on the Maginot Line to defend their country. So the Germans got away with using the Panzer I, and even had an advantage with them because they could pull into a French gas station and fill up the tank.
The Panzer II was a better armed tank with a two centimeter gun as the main armament. It also used a gasoline engine, which the Germans were to learn to their cost condemned the crew to a fiery death if they were hit in the rear section of the vehicle. Although used in North Africa and the Soviet Union, it was never intended to be used as a main battle tank, and was replaced in 1940, after the invasion of France, by the Panzer III, which was itself superseded by the Panzer IV. All of the PzKpfw tanks were inferior to the Russian main battle tank, the T34, which was in production and use from 1940 to 1958. According to Wikipedia: German tank generals von Kleist and Guderian called it "the deadliest tank in the world."
The Tiger and Panther tanks were an attempt to deal with the T34--and a paltry attempt it was. The Germans built a few thousand of those tanks. The Russians built more than 70,000 T34s. THe Germans in Normandy used to say: "A Tiger can take out ten Sherman tanks before the Amis (the Americans) can get them--and the Amis always have at least eleven." The Americans built more than 50,000 Sherman tanks, before it was replaced by the Pershing tank late in the war. The Tiger and Panther tanks were "over-engineered," using far too many resources and subject to breakdowns in continuous use, making them high maintenance. They also tore up the roads, so they were used transported to the battlefield by railroad, which meant that as the war progressed after Normandy, when the Allies attained air supremacy, the German armored divisions were less and less able to keep up with maintenance, and were obliged to move at night and hide in the day time, waiting for the Allies to come to them.
All in all, despite the many myths about German armor, theirs was not a happy experience.