We can whole-heartedly recommend this appartment. It is very central and you can reach everything by foot. The house has an elevator which makes it easy to bring your luggage in the rooms. It was perfect for two persons and had everything we needed.
The host was really nice and instructed us clearly how to check-in and what to do before leaving th appartment. He even offered help to find a way to the airport (it was complicated due to streiks).
When we arrived by taxi the driver tried to scare us because allegedly there are brothels near the appartment. But we were two young women and we were fine. We felt very safe walking home alone. So don't listen and don't be scared: You can just roam freely there.