Thanks for the honourable statement, but that includes prejudices, too.
But well, the most prejudices are true somehow...

Yes, it's not stressful to drive fast on an empty Autobahn. It can be dangerous, when you get tired by the monotony. As for example our next Autobahn, the A31 (from Oberhausen to Emden). On weekends, especially in the early morning, you are nearly alone. And it goes always straight on, no curves, no hills.

It depends also, where you are used to drive. For me driving the Autobahn is an absolute daily thing. When I think about my average kilometers, I can say it's nearly 90% Autobahn, ca.5% country roads and 5% inside town/villages.
This is caused by the fact, that over here, in and around the Ruhr Area, the Autobahn-net is very close-meshed. The most people here have no idea, how to come to the other Ruhr-towns without using any Autobahn.

The German plate-system is very good for having prejudices (any their nearly daily confirmation) You see immediately, who is from a town or the countryside. And the variety of prejudices is extremely large...

So I hate to drive in Düsseldorf. Aggressive, arrogant drivers, crowded traffic, idiotic marked-out roads, no parking space -nothing for free, everywhre expensive- just terrible. I pity my wife, who has to drive there every day to work. For those reason she never started to like that town. Just going working and then back immediately, for 17 years now.

And I feel pissed, when I have to drive on curvy country roads in mountain areas. This sucks!