This was my third time visiting Lisbon. The apartment was really nice and clean, but I personally like the more historic neighborhoods better. If you are looking for a central location, the apartment is great.
There is a bathtub in the apartment, unfortunate there was not enough warm water to fill up the bad. For showering its fine.
We also had a few problems with the electricity. It malfunctioned a couple of times. The Airbnb hosts were really responsive and helpful. We called at 21:30 in the evening, and they helped us immediately.
In conclusion, a nice clean apartment with all the with all the facilities you need and a very responsive and helpfull Airbnb host. Would recommend.