The Pros: The apartment is small but cozy. The air conditioner in the main area was key and was super useful. Check in was a breeze, very easy. We had a car, parking was easy to find. Catarina was great and very accessible.
The cons: these are observations that are mostly my fault for not investigating the area a bit more than I should have. Estoril is nice but relative quiet and to our surprise a lot of restaurants closed. . We ended up going to Cascais for most of the time. While the beach was nice, we felt it was super inconvenient to get to it and it was a bit further out than we expected so walking was not really easy or an option. Since we had a car we were able to drive to a much better beach than Cascais and Estoril (in our opinion). With much easier parking options. Beach name was Carcavelos. Cascáis in the old town was amazing and fun, just 10 mins away.
Overall still an amazing time!