We recently visited Lisbon for a long weekend as a group of 5 and absolutely loved it. I would recommend this flat to just about everyone. It was really clean and very spacious for 5 people. It was very clean and perfectly livable. All the bedrooms are a good size with adequate storage clothes. The living space is huge and is very stylish.
It is in a great location for all the site seeing and access to public transport.
There were only a few minor issues that are worth noting, neither of which i would say had a negative impact on our stay. Firstly the tram runs passed the front of the property which can bit a little noisy however the guests who stayed in the front bedroom didn't bother them at all. Secondly there is only comfy seating in the flat for 4, so if there is a group of 6 people it may be a slight issue. I must stress though that neither of these impacted our really enjoyable stay.
Feels like home are great hosts and are extremely professional. Anyone thinking of booking Lisbon for a few days I would definitely recommend this apartment.