We had a lovely time and found Lourenço's apartment to be cozy, beautiful, and in an excellent state.
The kitchen was modern, the appliances seemed to be much higher in quality than most airbnbs offer, and the decor was tasteful and welcoming to be in.
The house, although on the first floor, was very private. There was a tree in the front blocking potential neighbors from seeing in and, in the bedroom, the window was facing another building's wall.
The only thing I would say may need an eye on is the shower's water not draining quickly, but nothing that can't be easily fixed, hopefully. Also that the area felt a bit dodgy to be around alone at night, but this is outside of the owners' control.
In general, the place was wonderful and both my partner and I would be more than happy to stay in it if we ever have a chance to visit Lisbon again.