After reading some of what's been said here, it seems that much of what people consider "good" about National Socialist Germany is based not on the evidence but upon idealized conceptions of what it was really like. Propaganda seems to have its sway even today.
Here's what I mean:
Sense of community
This seems well and good, but isn't as true as most think.
In the first place, it's tempting to overlook the fact that what Nazis considered to be part of the "community" was very restrictive. The thousands of gays, jews, gypsies, political dissidents, mentally and hereditarily ill in the Reich were not only not allowed in the community, but were overtly set against it.
Even amongst "good" Aryan Germans life doesn't seem to have been so rosy. If you look at the recent research into the Gestapo - such as those done in Saarsbrucken and Professor Gellately's work in Wurzburg - the vast majority of cnvictions relied on voluntary denunciations, that is, your neighbour "grassing" on you. This would have seemed to have bred an oppressive rather than a united atmosphere.
I think the key point here is to grasp that outward manifestation of solidarity were often not as real as they seemed.
Strong economy
Again, this is not entirely true.
In terms of how the Third Reich set against the Depression years fared, things were pretty good. But real wages didn't reach their pre-depression levels until the late 30s (and then naturally went down with the war); agriculture was subject to resrictive price-controls that angered many peasants; and even the Nazis' much vaunted war economy was pretty inefficient until Todt and Speer "rationalized" it well into the war.
generous to hard working people
People have already pointed out the absurdity of this argument.
Physically, mentally and emotionally strong people
Only insofar as those who weren't these things were quite literally taken out of the equation.