Simple question
Were the people free?
Please answer quickly. Details optional.
Depends on...
a) in which state of Germany you would have lived,
and
b) with what time period you compare it.
In the United States of the early 19th century blacks were held as slaves and women were refused the right to vote... which would make the 19th century USA a crossbreed between today's Saudi Arabia and South Africa under apartheid.
Yet, it had clearly the most democratic constitution of that time period. Everything is relative.
I would say that pre-1871 Germany was freer than the Third Reich or the GDR, not as free as the FRG or the Weimar Republic, and about the same as the German Empire (1871-1918).