There is not much I can say that previous travellers haven't already covered. I was fortunate enough to stay here for nearly four months, both before and during the Covid lockdown. The space is massive and lovely. For a longer stay it had amble room to move, a fantastic kitchen, work area, bathrooms etc. Really too big for one person!
It is truly an oasis in the centre of everything, and I'm already looking to rebook when I return to Lisbon in a few weeks.
My only small gripe which is worth flagging for other potential travellers is the internet. The Wifi at the property is incredibly slow and flaky. This is due to the building infrastructure being quite old, so there is nothing that can be done about it. It's fine for casual web surfing, but if you are reliant on internet for web conferences or anything more intense, then you definitely should invest in a Vodafone Wifi hotspot (also not fantastic, but about 100x better than the internet at the property).