We enjoyed our stay at pedro's flat. A great place to spend a few nights on a budget, had quite a social feel and would recommend again. João, who was covering for Pedro was very helpful and stayed later to make sure we could get our room. Location is quiet but within walking distance to bairro alto, supermarkets, bus and metro stops.
Free coffee and large kitchen facilities made it easy to cook our own food, only downside was a few issues with plates sitting in the dishwasher uncleaned for a few days.
Would consider staying here again if we were to revisit Lisbon (which we undoubtedly will).