We have mixed feelings about this apartment. We knew there wasn't a lot of windows, but we didn't know that the few windows there are don't bring any light in, and that's it's also very moist and smells down. The location is great, the beds are good, and the first night it's quite a fun experience to sleep in a cave. But after a few days it gets really depressing and we had to spend as much time as possible outside of the apartment.
Also, there is no WiFi and no signal in two of the rooms downstairs ; the third one gets a little bit of WiFi, but otherwise you have to be upstairs.
We were also surprised that this is advertised as a 6 persons appartement ; there is indeed 6 sleeping spots but only 4 chairs, and very little kitchen equipment. It worked fine for the 3 of us but it would have been more complicated if there was 6 of us.