Here is what you need to know in a nutshell:
- great location/close to public transportation.
- very narrow/steep streets (i would advise against driving)
- cold at night (we were there in March)
- cannot use more than 1 appliance at a time
- only enough hot water for max 2 showers
- not suitable for people with difficulty walking.

Our experience:

I've got to be honest, we were faced with several challenges during our stay in Lisbon.

Firstly, be warned that although the apartment is located steps away from the main street (Avenida de Liberdade), the apartment is on a very small, very steep road. Looks cute/authentic in the photos, but quite the shock when you are driving. Google maps does not know the width of the streets so it took us on quite a journey through streets our car could barely fit in.

We were also travelling with someone who had some difficulty walking, so the steep streets did not work in our favour.

Secondly, although there are 3 bedrooms in this apartment, I do not feel it is suitable for 6 people. One of the main reasons being the shower. With only one bathroom, 6 people showering becomes quite the task. Especially when there is only enough hot water for 1 1/2 to 2 showers at most.

Thirdly, we had quite a bit of difficulty with using the appliances. Only one can be plugged in/used at a time or the fuse blows. This was for everything. Microwave, kettle, hairdryer, heater, etc. With 6 of us in the apartment, this proved to be quite a challenge. The heaters were needed as the apartment was very cold.

In addition, the washer/dryer (though useful), took hours to complete a cycle (upon arrival, the towels were in the dryer cycle with still 1 1/2 hours left to go - mind you, they were still a little damp in the end).

On a positive note:

I know it seems like I only have negative things to say, but this is not true!

The apartment itself is very clean, and well kept.

Valeria's friend Cristina (she was great!) was there to help us with anything we needed (it was unfortunate that the issues we faced were out of her control so there wasn't much she could do for us)

The best thing about this apartment is the location! Very centrally located, and easily accessible by public transit (walking distance to Avenida metro station).

Based on other peoples reviews, and the positive parts of our experience, I would say this apartment is definitely recommendable as long as you are aware of the points mentioned above.