We loved our stay in Lisbon.
Miguel had great communication before and after the stay providing us with all the details we needed for our stay through a very detailed handbook.
The apartment itself is in a really cool neighbourhood and give you a real feel for the real life in Lisbon, away from tourists. The apartment was really clean on arrival and although it doesn't have air-conditioning managed to stay pretty cool during the hot days and nights for the time we were there.
As the listing suggests there are only bare essentials in the apartment with towels and some cooking utensils (although we didn't use the kitchen during out stay).
Miguel (host) unfortunately wasn't very flexible with our arrival as he had to squeeze us in between cleaning the apartment and his rehearsals later that day. Unfortunately as we were 45mins late we ended up having to get the keys from a theatre 15mins walk away and didn't have a chance to have an introduction to the apartment (this was fun when we realised we didn't know which floor it was on!! - 3rd floor on the left).
Street parking near the apartment is possible, but extremely difficult. If you're not confident, don't even try! We were lucky and got a great spot for the first couple days only 200ms away, but the last day had to park down the hill about 800ms away.
Overall the stay was good and the apartment although basic had all we needed.