This was our first time in Lisbon - and it didn't disappoint!
The apartment is in a great location, Graça - not too touristy but it has plenty of eateries, small supermarket etc. It is up a hill and practically all the streets in Lisbon are cobbled so make sure you have comfortable walking shoes! But if you don't want to walk up the hill, tram no 28 stops close by. Great fun! We took an Uber to and from the airport for under €7 (around 10-15 minutes' drive).
The view from the apartment's terrace is wonderful, looking out over the rooftops, the castle, local church and the river in the distance. The space is roomy and bright with a mix of new and vintage furnishings. Modern kitchen with all mod-cons and well-designed shower room with a decent water pressure, considering the number of apartments in the block!
Joana provided lots of useful info and recommendations on arrival.
In summary: fabulous city, good apartment with wonderful views in great location.