We had a great time staying at Liu-Qi's place in Porto. The location is perfect, everything is easily reached by foot. The communication with Liu-Qi was very good, he always responded super fast and also gave us some tips for the area, which made our stay in Porto even better. Initially, I thought that we would also spend some time in the garden, but we were so much outside that we didn't really use it much and the times that we were there, the garden didn't have much sun.
The flat is very nice and clean and perfect to go back to during the day, to have small breaks and rest a bit, before exploring the city even further.
I would definitely recommend this place!