My wife and I began our Portugal trip with one night in Lisbon at Ana's apartment and had a great time.
HOST: We arrived a few hours before check-in and were able to leave our bags in a safe place in the building. The check-in process is very easy. I'm not sure if we actually met Ana but we dealt with 2 different people during our stay, both who were very helpful.
APARTMENT: The apartment is a lot bigger than we expected. Very clean and tidy as well. We were able to spread out and relax without any problem. My only issue would have been the air conditioning since at first it seemed like they were broken since the apartment was hot even with both units running. But by the evening it was actually very cold in the apartment so I had to adjust them. Not a complaint at all just letting future visitors know to give the units time and they will do their job eventually.
LOCATION: Excellent location. Close to many restaurants and places to visit on foot in the downtown Lisbon area. There were bus stops and train stops all around as well which we never used.
All in all a great place to stay while visiting downtown Lisbon. About 15 minutes away from the airport. It is a very touristy area but it's hidden enough where you don't have to face the masses if you don't want.