An excellent choice for a couple in the heart of Alfama. The beds, pillows, & seating were all comfortable. (But no top sheet on the bed.) We did not use all the gadgets. But the appliances we did use functioned properly. The kitchen & bathroom were well stocked with necessary supplies. The Wi-Fi worked perfectly. The owners were positive, friendly, and most importantly, available when we needed help.
The apt is a few minutes walk to several cafes, bakeries, restaurants, the Fado museum & the river front. However, motor vehicles are prohibited on their street. So if you are a traveler be prepared to drag your luggage a couple hundred meters on cobblestone. And if you're stupid Americans like us the European-style washer/dryer combo takes some patience to learn how to use. There are no closets.
The shower can accommodate someone up to 6'6" (198 cm). But it is temperamental in that the water temp fluctuates. If you are obese you may not fit in the shower though. The refrigerator is somewhat noisy when the compressor comes on. If that bothers you then close the bedroom door while you sleep. The induction stove top is a very nice feature. There are no supermarkets close by. But there are 1-2 mini marts nearby to find simple stuff.
If you keep the windows open you can hear Fado singers from a near restaurant on weekend evenings - a nice bonus. Overall, we enjoyed our stay because we got to experience the inner-city Portuguese style.