Ana's place is in a pretty and quiet street in Belém, which is almost like its own seaside town a few miles from Lisbon proper. Its distance from the 'action' as it were is not a problem, as it's well connected and Ubers are cheap (don't get the normal taxis, we'll come back to that later).
The apartment is on the third floor up a spiral staircase so be prepared for that. It's beautiful, bright, airy, and spacious enough for a couple to happily chill out after a long day of sightseeing, eating and drinking. Perhaps my favourite feature is the window in the shower, which allows you to look out on the sun drenched terracotta rooftops while you're cooling down (of course there is a shutter if you value privacy above the neck).
Ana was not actually there for our stay and contact was with her brother João who is one of the nicest people you'll meet in a town of friendly faces. I lost my bag in a taxi from the airport (which also overcharged us by 15 Euros, honestly do not bother with them) and he called every taxi company in Lisbon in an attempt to get it back. We did not manage to find it, but the help was so, so much appreciated.
This apartment and its hosts give you what you need in a new city: a sense of welcoming and safety, somewhere cool and dark to lay your head and bright and warm to see in a new day. If you are looking at this place and unsure whether to book, I can promise you you will not regret it.