We had a lovely stay at Abel and Odete's apartment. The checkin process was easy, despite our late arrival at around 10pm.
The flat was clean and looked as depicted on Airbnb. It's nestled in the streets of Alfama, which are great for exploring and getting some amazing food. We found most of the city to be walking distance of the flat, but there's also a metro and train station nearby.
The only snag you might find is that there's a seriously grumpy old lady living below and you'll be advised not to make any noise in the evenings. Thankfully we kept the noise levels to a minimum and avoided her wrath, but we did hear her shouting from time to time!
The hosts are very attentive and while we didn't have any issues during our stay, I am sure if you did they would help to resolve them as quickly as possible.