Good location within walking distance of Castelo de Jorge, Alfama and basically anywhere you want to go. The parking spot is a real asset if you rent a car, since parking in Lisbon is otherwise a nightmare.
The apartment has everything you need, although we could have used a fan both upstairs and downstairs. The rooftop windows provide a great view and would be great for cooling down the upstairs room. Only downside is that you can't really leave them open and unattended due to the occational cats on the roof (of which we had one coming into the apartment the first night). We've been informed, though, that they are in the process of getting AC installed in the apartment, which obviously would help to cool down the apartment. It need to be said, also, that we visited during an extreme heat wave with temperatures reaching 40 degrees Celsius even late in the evening.
Host is friendly and helpful. Neighbourhood is quiet and still you have restaurants and cafes just around the corner along with supermarkets and bakeries - very convenient.