Barbara is a great host and very responsive. We had a great check in experience. The flat was properly cleaned and all basics that you might need were available in the flat. Also, supermarkets and public transport are in a walking distance.
There are some facts and some issues with the flat that you should know before booking.
Facts: The flat is very small and (in my opinion) not suitable if you are with a baby. We had to take the stroller from the stairs to the 4th floor every time that we wanted to go out. The flat has a nice view but through very small windows (we did not enjoy it).
Issues that can be easily fixed: Bathroom door or the floor in front of it. Otherwise, you need some power to open or close it with some noise.
Water faucet in the kitchen should be replaced. The handles drop if you are not very careful and create an annoying sound.
Overall, for 3 nights we paid 156 euros and we think it was not worth it.