We stayed for one night and shared one room as a family of 4. Our check-in was delayed by 1 hour (because it had not been cleaned yet) and unfortunately, it was also not perfectly clean when we arrived (mostly minor inconveniences though). The key code system for entering the building and room was really nice and made coming and going flexible without having to worry about the key. The location is close to a metro station, so the city center is easy to reach in 20 minutes. Some stores (supermarket, pharmacy etc.) are also nearby.
With this amount of people, we would not recommend staying for a longer time, as 2 people have to sleep on the pullout couch. However, this is probably not a problem for single travelers or couples.
It would have been nice to have someone at the reception to learn about options for luggage storage before / after checkout. There was also no information about this on the website.
Overall, okay for the low price and a short stay! :)