The flat is very central and the main attractions are in walking distance. it is pretty much as shown in pictures and pretty clean. It was very well equipped and had everything we needed. The only downside, since we were traveling in winter, is that there was no central heating and it was really humid. We discovered a bit later that it is pretty common in Portugal, so it isn't strictly related to the flat.
The host was really easy to reach and helpful. We had an overall good experience.