The owner (Nelson) was very responsive and & his house manager Joaquin was also quick & responsive.
We had a few issues with heating not working properly & Joaquin immediately provided us with a separate space heater for downstairs bedroom which was later fixed.
The location in Principe Real is very central in Lisbon & overall great. However, this immediate area can get loud on the weekends & especially at night. The second floor bedroom also tends to pickup the street sounds significantly. Some of the linens (bedcovers) on second floor needed to be cleaned & caused us allergic reactions. The couch in main living area downstairs is a bit worn, but overall this is a fantastic location & comfortable apartment.