This place is a basically a cardboard box on the roof, to get there you use fire stairs. We were lucky to have small bags, if you have normal size suitecase you won't be able to squeeze in on the stairs. Make sure you don't get back home after dark and after a couple of corona beers, getting up there will be simply dangerous.
The bed is small for two people and sacks in the middle, so we had two sleepless nights and decided to leave one day earlier.
There are small windows in every wall so you have city lights coming in all night, never dark.
This place is maybe OK for a single young traveller. The work table and kitchen is convenient. The rooftop with plants is very nice.