The apartment and location are great. The customer service and communication by the host is absolutely outstanding.
However, this particular apartment on the ground floor is located right above a subway line. As a result, whenever the trains run (felt like every 2 mins), it's incredibly loud and even the walls and windows are shaking. The subway runs from 5AM to 2AM - meaning you'd get 3 hours of sleep if you're lucky. My partner and I are deep sleepers. We both used ear plugs. We both couldn't sleep a single minute although we were exhausted from the journey. For us, an accommodation experience is driven by the location, design and cleanliness of the place. However, probably the biggest part of the experience is the chance to get rest. This is not possible in this apartment.
Particularly considering that this is advertised as luxury experience and considering the price point (€340 per night + cleaning fee), the value for money is below bad since you will not be able to sleep. It's almost not usable as an accommodation if you want to get rest during a well-deserved holiday.
I rate this experience 2 stars only because of the outstanding customer service and the fact that the staff moved us to a quieter apartment. But if I would have to rate this particular apartment, it would get 1 star and in fact, I believe it's not usable as a holiday apartment. I'm very sorry for this.