This apartment had plenty of space for our 8 day Lisbon stay. And a great location for getting around Lisbon. It's a second floor walk up on a very local & quaint side street. If you're planning to have a car, parking will be a bit challenging.
The electricity is a bit sensitive in the unit - can't use more than one stove burner or burner + stove at the same time. But if you're not planning to do much eating in won't be an issue. The apartment is comfortable and Isabel was always available to assist us with any questions. The welcome bottle of Portugal wine was a wonderful gesture and delicious!
Overall, a good option for your Lisbon stay.