Answer is probably not good. The Peace between Germany and the United Kingdom would be an uneasy one, and one that probably means that the USA has placed a heavy garrison on Britain (and perhaps one on Ireland as well.) In 1952 the USA/UK would probably have the A Bomb, and they would be pointing it at Germany, which would have weapons of its own pointing back at them.
In addition, the Germans are now presiding over the second holocaust--the organized murder and expulsion of Slavs, a daunting but conceivable project. If there were dark rumors about the first holocaust, the second is ten times the scale. Partisan activity would continue, but by this distant point the Germans would probably have depopulated most of Poland and Bohemia--and its possible that various centers in the Soviet Union (Baltics and Crimea for example) might already be German inhabited.
There's no way around it, the Third Reich at 20 is going to be a massive armed camp in the early to mid phases of murdering/exiling tens of millions of people. The Remnants of the Soviet Union might still be at war with the Germans, a situation that betokens a Vietnam like conflict on a large scale. Even if the Soviet Remnants are not at war with the Germans, there is a bitter hatred for Germany that is perhaps worse than any hatred in Germany. The Eastern Front in the Urals is a war like the Iraq war--minimal losses but no real prospect for in end.
Some people have claimed that the Third Reich would have a technological advantage on the West. I believe that this would be focused mostly in military technology and that advantage would begin to fade as ideology trumps facts and a politicized education system focuses on indoctrination instead of instruction. In 1952, The USA is well ahead of Germany in many fields of learning, such as economics and sociology. The German edge in hard sciences, however, is fading away.
Life in Germany, at least for the Germans, is pretty good. Despite heavy military spending, the end of the shooting war means that the Average German lives a long, healthy life. Behind the scenes, however, lie the successors of slave labor factories--and here is where the price of the third reich is paid in sweat, tears and blood. The Slavs that live in German occupied areas at best live in poverty and SS Terror. More likely, they live in forced-labor camps until they can no longer work. Its an open question of whether a victorious reich would try to exterminate the Slavs through deliberate executions or simply exploit them to death. Either way, the Slavs are dwindling in number.
Perhaps the darkest question is whether in Germany cares. Undoubtedly some do and either attempt to subvert the system or flee the country. But I think the majority would simply appreciate the low prices of goods in their stores and accept their buying power and living conditions. The Racial doctrines of Nazi Germany would become an accepted fact, while the rest of the world moves on.
In short, Nazi Germany 1952 is a pleasant dream for the Germans--a world in which they don't need to work hard or worry about much more than their own protection through their own racial superiority. Its a dream destined to become a nightmare--the Slavs will eventually run out, and the ideological adjustments to science and economics begin to take their toll. And on the other side of the Urals, the shattered remnants of an abused people await the day they can take it all back. They will rebuild, they will reorganize, and when the time is right, they will get revenge. The Slavs might be the second Holocaust, but they would not be the last victims--the Third one would be the Germans themselves, and one wonders whether anyone will shed a tear for them either.