I've yet to live in a country where the public institutions aren't being torn apart by privatisation and cost-cutting. That's sadly universal. So I'd say Germany fared better than the other places I've lived: Portugal, Spain, France, and Belgium. In Belgium we have a higher marginal tax rate with the same results as you're complaining about.

Your universities are still seen abroad with high regard.

Rent… well, damn, yes. Rent is very high everywhere, for a number of reasons largely due to letting foreign and corporate investment hoard up property, while at the same time building too much high-cost residential and not enough for lower and middle class people (single or otherwise). The market won't correct itself until only individuals are allowed to own housing and up to a certain highly-progressively taxed limit. That said, my rents in Germany were lower than, say, Belgium.

I agree you have a rich country and I didn't live there all my life. But it's still one of the few countries I'd say is doing something for its citizens, largely due to the German understanding of the collective good and social norms :)