We stayed at Isabel's place for two nights. We had a good stay. Felt very comfortable in it. Everything was setup thoughtfully. Isabel was a nice host, she met us at the apartment and explained everything. She has this little booklet that lists all the interesting places to go and where to eat, which was very helpful! The apartment is close to the famous Time Out Market that has an assortment of fresh produce, meat, fish, and restaurant grade food stands. It is also close to Metro station and #28 Tram. But we mostly walked everywhere from here. The kitchen has all the necessary for making a meal. A little lacking in condiments but that is probably not something to be expected from the host. There is a good grocery store nearby about 7 min walk from the apartment where you can get your normal groceries or walk down to the Time Out market to get fresh stuff!
Beware though, Uber driver may not be able to find the precise location of the apartment. And if you are in Lisbon, there are hills everywhere and be sure to wear comfortable shoes!!