My partner and I stayed in 3 different places while in Lisbon, and we felt that our stay here was decent.
The pros- the bed was very comfy, the shower was the absolute best we had at any of our stays, and the view out of the windows was interesting and fun. The AC worked really well, and it was close to a convenient store/public transportation.
The cons- there were no amenities outside of hand soap (no extra towels, shampoo/conditioner, coffee, tea, recommendation manuals). So the place felt pretty bare. The metro station that was close by was closed on weekends, so we were unable to use it. Lastly, the location itself was okay. There weren't any authentic Portuguese restaurants or things to do within walking distance (outside of the botanical garden! That is close & worth seeing)- mostly just slightly overpriced restaurants (they're still good, just not what we were hoping for).
Truly, this place is best for people who like more metropolitan areas- we personally preferred being in the historic downtown area, but to each their own. If you enjoy shopping malls, city streets, and more modern areas this could be a very good place for you!