We stayed in Miguel's apartment and it was great! The apartment is really cool and modern, with great attention to details. the terrace is very cozy, perfect to chill out after a long day spent visiting the city.
The positon is really convenient, close to metro station and to Martin Munoz and Rossio squares. There are some restaurants around and supermarkets. Miguel is a really nice guy that provided us some useful tips as restaurant recommendation, what to visit and what to avoid as well :-)