We stayed 12 nights at the apartment and we had a really good time. All of the positive aspects have already been mentioned in previous reviews, very spacious, the convenient location, the sunny balconies and the good equipment. Xana is a very nice and professional host. Waking up with a view on the Alfama is an amazing memory I have from this trip.
One thing worth mentioning, it was not visible on the photo: there is an actual desk in the bedroom, so in total there are two tables which are ideal for two people wanting to work from the apartment in separate rooms. The internet is also very fast and reliable and good for videoconferencing.
Some practical tips for staying in the apartment:
Some previous reviews mentioned cold water in the shower. During the 12 days we had 2 mornings only cold water, but this is totally normal for apartments in Lisbon! After a few hours everything was back to normal.
Be aware to prewash dishes before putting it in the dishwasher as it is an older model which can clog easily.
For grocery shopping there are many minimarts around with fresh vegetables and fruits, for bigger shoppings I recommend the Pingo Doce in Graça or the supermarket in the Santa Apolonia which is in walking distance.