We spent 2 nights in Andre's airbnb. The flat is nice and small, but has everything you need for couple of nights in Lisbon, and being localized in the Graça neighbourhood makes the exploring on foot easy. The checkin and checkout were super easy and smooth.
We liked the fact that Andrew is accepting the dogs, but unfortunately our transporter couldnt pass through doors due to their size, so we ended up dissasembling the transporter in the middle of the night in the street with some cockroaches around us (in Graca almost unavoidable in summer months). As airbnb is in ground floor, we found it a bit unsecure that balcony doors couldnt really be properly closed, and the mezanine bed made of wood had its better days, as some of the stairs were pretty loose and shaking/cracking when we were going down/up.
All in all it was a good experience, but with some minor works this flat can be much more confortable :)