Pedro's apartment is very well located, in the Alfama neighborhood but not too far up, so you don't need to climb too much to get there, and you can very easily walk to the Praça do Comercio and the Baixa neighborhood. Pedro was also quite flexible about check-in and check-out times, which was very nice of him.
The apartment looks like the pictures, it's very clean, but I must say the furniture is maybe a bit too basic (entirely Ikea, and not a single personal object, not even a place to hang your clothes) to really make you feel at home. It's perfect if you just plan on using it to sleep and as your basecamp for exploring Lisbon, but don't expect much charm or cosiness. Also, it's quite noisy (both the street outside and the building itself).
In short, I found it a little expensive for what it was (I was there in August and we were paying 72 euros a night).