Paulo's place is well located in the old part of town, in the Alfama district, close to many nice traditional restaurants and on walking distance from the center. It's good for a few days stay in Lisbon. Stairs are very narrow and steep and also lots of cobblestones and stairs outside in the area. If you're coming with large suitcase have this in mind. For me it wasn't an issue with my hand luggage.
Communication with Paulo and check in/out went smoothly.
The apartment has everything for a comfortable short stay and there were small thoughtful touches like coffee/tea, make up cleaning wipes ... which I found very sweet. The only thing I didn't like was that there's an evident problem with the bathroom. Regardless how hard you try to shower mindfully and quickly, there's always water leaking out of the shower. Also the tub drains very slow (which Paulo mentioned on the check in and despite we never overlflooded it, there was still water all around and we had to clean it with our towels unfortunately. Also at night there was a bad odor of sewage in the bathroom.