We highly recommend this wonderful apartment which has an amazing location in the Principe Real area. Many places are easily reached by foot and there are plenty of bus or metro connections close by.
Definitely also check out the amazing ice cream place around the corner (Nannarella).
The apartment has everything you may need, while also giving you enough space to relax. Marta has been a wonderful host and the communication was very easy and smooth with her at any given point. We are looking forward to coming back to this place if we find ourselves back in Lisbon.