A very nice place - as my stay proves, not just for Instagrammers ;) Located in Alfama, the apartment is a bit off the beaten track, although you still have everything you need nearby (minimarkets, public transport, bakery). The district Chiado where most of the restaurants are is a 20min walk or a short Uber drive away. The apartment itself is very light, modern, clean and homely. The steps are pretty steep though (the apartment is on the 2nd floor, or 3rd, depends on the way of counting :D), so if you have difficulties walking or something like that, you should maybe go somewhere else. For my girlfriend and me that was no problem, we enjoyed the old feeling of the building.
Sara (the co-host) was super helpful and very nice, she provided us with a map and information about the neighborhood as well as things to see in Lisbon. Wifi worked well.