We stayed in Diogo's apartment for 3 months (Jul-Oct). The apartment itself is very cozy and well furnished. You will find everything you need. The apartment is located in one of the busiest parts of Lisbon, which is great if you want to go out.
Diogo told us before, that it will get noisy at night.(As he also states in the description). We were however not prepared for what that actually means in a city like Lisbon. This is of course by no means Diogo's fault, but we wouldn't stay there for 3 months again.
The apartment is perfect for short term stays in Lisbon, when you are looking for a few fun days right in the thick of it. If you are planning on staying in Lisbon to work, I would recommend choosing a quieter Neighborhood.
Diogo is a great host who is very considerate and always available, if you have any issues.