This was a very good housing option for us, as we visited for 5 nights so we wanted to get the most out of our experience. The location is great! It's right in the city center, next to many Metro stations so you have plenty of options. Overall, it was a nice experience, the staff are very helpful and there were no big problems really. I only have a few mentions:
1. The elevator in this building is not really helpful if you have a disability for example. It only goes from half-floor to half-floor, so unless you live on the ground floor you will always have to climb some stairs to get to your accommodation.
2. The room doesn't have almost any natural light, as the windows are very close to other walls. The overhead lights in the apartment are fine, and we didn't really spend that much time indoors during the day for this to affect us, but if you care about this maybe take it into consideration.
3. If you're very sensitive to noise, you might want to consider bringing earplugs. I always carry some with me so I had no problem, but especially if you visit during the weekends, people will come to their apartments late and you can hear noises from above or from the hallway pretty clearly.
But overall, I consider it was worth it for how close to everything this place was.