It was an ok staying, but doubt I will be staying here again.
I arrived at 14:30, the check-in was only at 16:00, but I usually when arriving ask if I can already check-in. I was surprised because the room was ready, but they made me pay an extra 17€(70PLN) just to access the room earlier.
This for me is very poor customer service.
So will not use this hotel again.