We stayed there as a group of 4 (a couple and two friends) and had a nice time.
The apartment is very cozy and in a great location. Easy to get to from almost anywhere in Alfama and very close to a classic Tram 28 station and two beautiful viewpoints atop Alfama.
Fatima and the rest of the team are very helpful. We had a problem in the first day which they resolved very quickly although it was challenging. I can only say good things about the kind, swift and professional communication.
If you plan to work remotely from the apartment, the bandwidth of the network is alright for one user, but multiple users having video calls or network heavy activities can be choppy.