Good things first: the flat is in an excellent position, the check-in process is very easy and can be done at any time, the host always available via chat and proactive in solving problems. Just keep in mind that the stairs are very tight and with no elevator, so this flat is recommended only if you only have a small luggage or backpack. As for the rest, at night there was a lot of noise from the flat below and from the street, cleanliness wasn't impeccable, the shower was half-broken and not everything we expected to be there was there (e.g. basic stuff for cooking). Nevertheless, if you're adaptable enough and looking for a place to stay right in the centre of Lisbon... don't be afraid! :)