Positives: The room/apartment itself was great. Clean and comfortable, nice kitchen, and access to laundry in the basement (BYO detergent etc).
Negatives: Numerous listed amenities were not actually available at the property. The was no "on-site concierge," no vending machine, no luggage storage. The absolute worst part of staying here was the communication through WhatsApp. Responses are clearly either from a bot or copy-pasted, often resulting in inaccurate information. For example, I asked about luggage storage and was told that while they didn't have it on-site, I could click a link to find a local partner, and "best of all, it's completely free!" Upon clicking the link, I was taken to a separate company who wanted to charge nearly 30 euros to store our luggage for a few hours after check out. I also inquired about late check out, and after several exchanged was finally told it would be OK to check out at noon instead of 11am. This turned out to be untrue, as our keycard was deactivated at 11am and an employee knocked on our door at 11:15 asking us why we were still there. After I showed him the WhatApp messages where I had confirmed noon check-out, he apologized. I asked him if these communication issues and amenity changes had happened as a result of the change in who owns/operates the facility, and he said yes.
Trying to communicate with the company through WhatsApp was a huge waste of precious vacation time. We will stay elsewhere next time.