I, too, stayed at Largo da Sé, but can't recommend it! Although I prearranged a time to drop off my backpack, I found the door locked and waited for 1.5 hours before staff arrived. My room looked nice and clean, but around 1 a.m., I awoke with 15 bedbug bites, sighted 3 of the creatures in the sheets, and spent the rest of the night in a chair (no staff on the premises, so no chance of changing rooms). The booking included breakfast, but in the morning there was no breakfast and, again, no staff. Even without these inconveniences/miseries, the nearby trams and the people shouting in the public square across the street were noisy until the wee hours. I stayed there in late September 2022, and perhaps it has changed hands and improved since then. I hope so!