First off, this apartment is huge! We stayed there for 2 weeks, and my husband was working the majority of the time. We needed a space where we could move around while he was in zoom meetings without feeling we needed to whisper. We had the kitchen, a tv room and a sitting area where we could hang out in the morning or wind down in the evening and we let him use the big living room with the table as his office. This is a fantastic location. We walked to most of the major sites within the city, scootered to the Belem Tower and rode the trams for fun. The metro station is about a 3 minute walk, we used it to go to Cascais, and the train station is about a 15 minute walk which we took to Sintra.
The apartment is eclectic and homie, mixed with original, contemporary local art, hundreds of books and has so much character, unlike the sterile quality of many Airbnbs, this felt like you were staying at your family's house when they weren't there! It was airy with very high ceilings and many huge windows through the flat, making it very bright & sunny. Miguel was a wonderful host, he promptly responded to my questions, and was lovely when we met at the flat.
The flat is literally just to the left of the infamous Pink Street, so it can be lively in the evening. If you want a very authentic setting for your stay in Lisbon, this is the apartment for you. I highly recommend it.