Internet is really slow (8 down, 0.8 up) so not suitable for video calls. LTE/4G is really good, tho. Hosts said they’ll improve on Wi-Fi.
Otherwise, the apartment perfect. Beautiful apartment in the old town of Lisbon. 5mins walk to the sea side, gorgeous scenic view from the apartment.
Only go there if you’re fine with stairs as there are a lot in this part of Lisbon. Close to the apartment there are two stations of the tram 28E. Excellent bakery (Alfama Doce) close by, too.