Pedro's place is awesome for a visit in Lisbon. It's situated close to almost everything in the city and gives you a real Lisbon feel as it's situated in one of the pedestrian streets on the city. Be prepared for going up and down the hills as that's how Lisbon is built.
You are within 5 minutes away as walking distance from the subway, trains or busses, 10 minutes from Praça Do Comércio and 15 from the city center.
If you plan to come by or rent a car the parking is close to the train station (or at equal distance on the streets). At the train station there is a big parking space where you can leave your car unlimited (it was priced at a max. 8 euro per day). You can also find spaces on the street or in front of the Military Museum but those are limited to a 4 hour stay between 9 and 19 (worth mentioning that after 19 it's free and you can leave your car there until the morning with the same limit. For example if you arrive at 18 you can pay for two hours and this covers the interval 18 to 19 in the afternoon and 9 to 10 the next day). Be sure to check that the places are public and not reserved for people living in the area.
The apartment is very cozy. We were visiting during January and it was a bit cold but a heater was available. Also when initially presented there was for hot water a small boiler in the kitchen. I was concerned about that but both me and my wife had showers and the hot water was there.
The place is the first floor of a three story building. As the building is quite old the walls are pretty thin so you can hear your neighbors going up and down the stairs. For sleeping this might be a problem but Pedro was nice and provided ear plugs.
Pedro is an awesome host, very responsive and helpful. He picked us up at the airport and drove us to the apartment.
This is a highly recommend place and host.