Imagine flying to the town where you have your accommodation booked and paid to learn upon arrival that there is a couple bucks fee that you need to pay in order to get checked in (nowhere else in Gdansk i was asked to pay this fee), and there is no reception at the apartment - it's on the other side of the city where you might have to go to pay it, or their online option which is barely working, while the host replies to your messages once every 20-30 min. None of host's "emergency" phone numbers ever responded too. That was my experience, took me a lot of stress to get checked in after exhausting overseas travel.
The apartment itself is pretty beautiful and comfortable, the shower is a bit "used" but it didn't bother me a lot.