I have been several times to Lisbon, the reason I this time decided to stay at this apartment was location and budget price (time of booking) and the host was going on vacation during some of my stay. I stayed for 2 weeks.
If your a solo traveler that plans to stay one or couple of nights, and your on a tight budget, the place is ok. It´s central. But bring ear plugs, and if your sensitive to light then something to put over your eyes as the curtains dont really block out the light.
But if your looking for little comfort maybe you will end up like me, feeling disappointed.
The apartment is not really suited for more then one person including the host.
The bed is hard - no over mattress on the bed. It´s on the first floor in little square, the windows are covered with this plastic so people walking past can´t look in, which means you can't look out either, this means - walk outside to see if you should bring umbrella or sunglasses.
There was no area in the kitchen and bathroom put aside for me to store my things. It was noisy.
Honestly Lisbon has some very nice and cosy budget apartments, just saying.
I would not stay here again.