We stayed at the apartment for a long four day weekend. We were in contact the whole time with Markus' associate Pia, who was very responsive and allowed us to check in a bit early on the first day and leave our bags there on the last day. The apartment was sparse and very clean, with everything we needed. The bed was very comfortable and my friend slept on the couch the whole time and had no complaints either. The apartment also stayed very warm even when it was only around 5C outside. A nice 20 minute walk to the city center, the area is clean, safe and quiet.