We had a very nice stay at Cathrins flat. It is very close to the Sagrada familia and a metro station is just one block away. We can recommend to visited the Gaudi bakery for breakfast.
The flat was clean and the beds were comfortable. All rooms are renovated and the bathroom and its shower are especially nice. The flat is just for airbnb usage and you will not find a flat that is equipped with personal stuff of Cathrin.
The price for the cleaning and the towels is not included in the price displayed on the airbnb site!