Carlota's place was very good located, it was easy and not far to find the sightseeing spots without the subway. Also there were a lot of bars and restaurants located near to the apartment, but in the night (about 2/3AM) it was still really loud because of the bars.
The apartment was clean and fully equipped for cooking and with other essentials. However in the evening it got really cold, but the apartment offered a mobile heater, so it was okay. The biggest problem was the internet/wifi. Wifi was available but most of the time it didn't work or was really really slow unfortunately. So we couldn't use it during our stay.
Anyway the contact with Carlota was easy, she gave us a lot of tips for Lisbon and hospitality was perfect! Thank you for having us~