This is a capsule hotel. The room is as large as the bed. There are 2 storage drawers underneath the bed for luggage, but will only fit backpacks or small carry on bags. If you have checked-size luggage, there is literally no place to put it at all and this is not the hotel for you.
Each room does have a private bathroom which is the best part of it! The whole room was immaculate when we checked in and they come every 2nd day to refresh the towels and such.
The bed and pillows are super comfy! But the room only comes with 1 duvet style blanket. No top sheet, no additional cover. Just the 1 double bed size duvet to cover a king size mattress. I'm sure it's perfect for a single traveler, but it is a little tough to try to fully cover 2 people.
My biggest (and really only) complaint is their rules about food. They ask you not to eat in the rooms which makes sense given their tiny size and lack of eating space. So when we bought some sandwich supplies from the local store, we figured we would sit at their outside tables. Someone came out from the front desk and informed us that we couldn't eat our own food there. When we tried to explain we were staying at the hotel, we were still told we were not allowed to eat there due to the cafe "being a paid cafe". So not allowed to eat in the rooms and also not allowed to eat outside unless you buy their own food because I guess spending several hundred Euro on a room doesn't count as being a paid guest