Good location, next to a tram station. Modern design

They ask for a 100 deposit when there's nothing valuable in the flat. They won't give you the keys earlier than the check in time unless you pay them. We arrived with a baby after a long drive 15 minutes early while we had informed them before and we couldn't get in. The electric heaters were not working. When I asked about it they sent me a picture of the kitchen water heater and then I didn't have more time to spend on this. Heating never worked. Also, I sleep with earplugs and I could still hear people walking upstairs. Not the most comfortable stay!