Stuff was friendly, but he forced me to take insurances I haven't booked before, that might be their job, I accept that.
After renting the car, thank tank was not filled up completely when I picked it up - around 10 l were missing, they offered me a transfer of around 18 euro (for the 10 l). That was I nice gesture, but they took from my bank account the amount for renting plus the 18 euro. After asking them twice about this issue, they didn't respond. So, in the end they gave me no discount at all. I am not satisfied with this behavior.