I stayed in the YHouse for 2 weeks during my first trip to Lisbon, and Cristina was an excellent host! She spent a lot of time showing me around the place when I checked in, and she provided lots of suggestions on things to see and do around town. She was also very responsive and helpful when I contacted her with questions.
The house is located in a relatively quiet neighborhood, with a grocery store, several restaurants and bars, and very nice park nearby. It's about a 10-15 minute walk to the main tourist areas in the center of the city, and it was nice to be away from the crowds a little bit.
When I arrived, the house was very clean, and Cristina had it stocked with all kinds of household supplies for me to use. She even came by to clean the place halfway through my stay.
All in all, I had a great experience in Lisbon and would definitely recommend Cristina as a host and the YHouse to anyone!