We enjoyed our stay at Studio 11 very much! Margarida was so kind to pick us up from the airport and take us to the Studio.
It's a very clean space, beds were good, linen was brand new and it got cleaned once a week, including fresh towels. Kitchen was small, but had most needed attributes. It's a perfect space for 2 people, or with a small kid.
Margarida was very easy to reach, when something broke or we missed something, she arranged it within 24 hours, that was very good!
Having a swimming pool just next to the apartment was a luxury, the beach is a 10 - 15 minute walk (depending on which beach you choose.) We only missed a small supermarket nearby. It would have been handy(er) to have a car or bike during our stay, but taxi's are really cheap, so it didn't really matter. The centre of Cascais is also doable by foot.