Just returned from Lisbon, after staying there 3 nights.
Arriving from the airport, we've noticed the perfect location. Easy to get there with aerobus, around 40 minutes from the airport.
It's in the middle of the center between Cais do sodré and Bairro Alto. So perfect!
As mentioned in several reviews, Esther welcomes you with fruit and a bottle of wine. Many thanks for this.
Also, she provides you with tips of Lisbon. Restaurants, bars, things to see, ... The best local info you can get.

The apartment of Esther is like it looks on the pictures. Not big, but enough to stay there. We were there with 3 friends, so we used 3 beds. There are 2 nice rooms with big beds and above the kitchen you have a third bed. The beds were very good to sleep in, not one of my friends had any complaints. Keep in mind you will here noise of the street in front and people in the stairwell. But for us, this was no issue.

The kitchen is perfect, everything is available to cook, make coffee, do the dishes. And there's enough space.

The bathroom is rather small, but everything is there. Toilet, washbasin, shower. Shampoo's and toilet paper were also available.

The living room was perfect for us.
The terrace has a nice view! We've enjoyed it.

Conclusion: I would recommend this apartment to everyone!