Xana's apartment is lovely. Nicely decorated, clean, and easy to get around. The walk from the train or metro is uphill so advise to take a taxi as they are cheap. (Also uber is option). The bed was comfortable, there are fans should it get warm and a great breeze on the terrace. Xana left us a lovely bottle of wine and cake. Would recommend. If you walking issues, Lisbon is very hilly, and the hill up to the apartment is steep, we solved this by walking down to the metro and taking a taxi back in the evening from where ever we were (5 Euro from town square).