We've stayed at Isabel's apartment for 4 nights and everything was perfect. The apartment is super-central, right at the Martim Moniz square. One of the most advantages is that the house is new-built, there is a lift inside and everything is modern. Despite the fact that the apartment is right in the city center, it's very quiet.
The apartment is very stylish and clean, you can find there everything you need. It was a pleasure to stay there, so I recommend to choose Isabel's apartment.