There are positive and negative points to note about this flat. For me the location was good. The house itself is not pretty, nor is the street, but it is very conveniently located, close to many good cafes and restaurants, Jardim da Cerca da Graça was amazing to have within walking distance. The flat is located in between Anjos, Graça and very close to Alfama. Closest Metro station was Intendente. It was perfect for exploring the city.
My main disappointment was that there is no light in the room. On the photos the room is bathed in light and the description reads SUNNY DUPLEX. Actually one of the reasons I was interested in this flat in the first place. It is not sunny. The flat is on the ground floor, windows to the street, on street level. Shutters need to be closed once you tun on the light, otherwise you will be exposed. During the day, not such a problem, but there is no direct sunlight throughout the day. The kitchen and the backyard get a lot of sun in the afternoon, which was nice.
The equipment in the kitchen is fine. Nothing fancy but you can cook a basic meal, wash your clothes and have everything you need. Internet was good in the room, sometimes a little weak if you work from the kitchen, but some days it was fine there too.
The bed is comfortable. If you are a light sleeper, bring the earplugs. The walls are not sound proof and there are sounds from the street you will notice for sure.
Generally I don't have anything against old furniture, but some of the furniture in the room can hardly be called charming. It is just old and uncomfortable, like these two chairs, that apparently can be unfolded as an extra sleeping option. You can hardly sit on them because they are so soft.
I stayed in this flat from mid January until mid February. It was cold at night. The room has a heater on the wall, that was pre-adjusted to heat only during certain period during the evenings and mornings. It is electric and of course consumes electricity. Kitchen and bathroom don't have any heating. Try to shower in a cold bathroom like that! Pedro gave me a small portable heater that you just plug in when needed. It took some discussions to adjust the main heater to a setting that was more acceptable for me. I understand that there is no real need for heating in Lisbon, as it is only relevant for a few month, but still, the nights get cold in January and a guess not everyone can sleep or shower in the cold. Consumption is included until 65€, as reads in the flat description. My extra bill was 49€ even though I was completely absent from the flat for 10 days out of 30 that I spent there. All in all, maybe the flat is not really suited for winter month.
Another point that took some discussions was the shower. When you shower the water does not go down properly. Pedro tried to fix it, then brought the specialist who worked on it. No change. It does not really drain as it should. I just got used to it after a while.
To summarise this, I paid over 1000 EUR for a month stay in this flat and I think it is overpriced for what it offers. Pedro is a very responsive host, a nice person too. His suggestions for exploring the city are excellent. I think that generally this flat is good, maybe it just needs some updates here and there.