ever since germany privatised rail (and post) while remaining mayority shareholder
it has become ultra shit.
quality and reliability has gone down extremely over the years.
efforts to mitigate the damage done thanks to neglect probably cost much more than proper maintenence would have cost them.
those efforts are paid for by the state ofc.
deutsche bahn is so unreliable, neighbouring states have to cope with them disrupting their own schedules.
if anything its reliably unreliable
but you already have a shitty underfunded rail system, so not much change there. the post office on the other hand will be heavily noticeable
in my experience, the native hamburgians are much nicer than their counterparts in cities of similar importance like Berlin, München or Vienna. Although they all have their specific charme
(im assuming berliners have it too, i just didn't experience it)
working as intended. for several generations, the car lobby fills the management of deutsche bahn.