We had a great stay at the Urban Chic apartment in Baixa/Chiado.
The location is more than ideal to explore the city center by foot, and there are many great restaurants and cafes within walking distance.
The apartment itself is beautiful: the wifi worked perfectly during our stay, the kitchen is fully equipped - there was even a ice cube tray in the freezer - and we were happy to find a first-aid-kit, which we had to use because I tripped and hurt myself during my run. So thank you very much for that :)
Very very minor remarks: it can get quite cold in the bathroom (given the season we visited), so it would be lovely to have a carpet to make it a little more cosy. There was only one cup for two people and the two glasses are quite small, especially if you want to have a nice drink with ice ;)