Manuel's place was honestly one of the best AirBnB experiences I've had to date. The location is fantastic, extremely walkable to restaurants, shopping, and transit stops, but situated on a quiet side street without street noise. The place was spotlessly clean, with beautiful design touches. Manuel met us in person to hand us the key and give us a more personal and comprehensive introduction to Lisbon.
I stayed with one other person and we shared the double bed (there is a room with two single beds that went unused). I thought this was a perfect space for a couple. We used the dining room to eat snacks but did not cook. The AC units worked well. You can hear other people as they open/close the doors but it's not disruptive to sleep and we didn't otherwise hear other noise.
My flight arrived early and I did have to wait a few minutes for Manuel to hand us the key. But the wait was not long and his conversation with us was so informative and friendly that in the end, I didn't mind the wait. The only thing I disliked was that only body wash was provided, so I went out and bought my own soap bar, shampoon and conditioner. I'd say the apartment is stocked with beautiful decor with less emphasis on travel amenities.
I'd highly recommend this AirBnB, ideally for groups of four or less. I would not recommend for families with small children, as I'd be nervous about breaking things or running into the glass bathroom wall. If I were to stay in Lisbon again, I'd definitely come back.