I chose Wiltrud's place due to the majority of positive comments left by other guests, but there were some issues during my stay that I didn't expect.
The communication was not so good, there were cleanliness issues ( including spiders ), that the host didn't really care about, so I had to clean the room myself ( with the cleaning fee included ). The common places have a bad smell, confirmed by other guests as well.
There was another misunderstanding during my stay and the host was incredibly rude, seemed to only care about the review she would get, instead of trying to find a solution together. The cleaning lady was also in the kitchen sometimes at odd hours, making big noises during sleep time.
I would recommend this place as it's close to the center and it's not so expensive, but it is a lot older in reality than it looks in the photos. Also, beware that most of the amenities are in the common area, so it can be hard to reach them.
Overall, I wouldn't go back to this place. I love travelling a lot and I've encountered hosts with worse reviews, but who are much more accommodating, respectful and who take care of the conditions that the guests stay in.
Best regards!