We told the owner of the flat and she told us that in Poland the tenants are responsible for all repairs to the flat,
obviously that is not true, but keep in mind that the best tenants are those that will try an easy fix themselves before they call a landlord about something like their stuck toilet handle. If it's more complicated, some enterprizing tenants will give a landlord a call to discuss how much the repairs could be done for (who can google it faster... joke!) and whether the landlord has to fly in to supervise.
I am a landlord myself, and when considering a new tenant, I try to figure out if this is the one will be calling me in when a lighbulb in the courtyard burns out.
I'd love to get a Polish guy as a tenant. All the ones I know would go bats if they couldn't figure out how to fix something themselves. Which can also be bad, but that's another matter..