Geraldo is a great host. He replies to your questions within an hour. The flat is great. There is two twin bed and a convertible sofa. Everything is very clean. The appartment is located very close to the main city center and next to many transport connexions. The great thing about that flat is the huge balcony / terrace. You have access to various services, but we did not tried them.
Lisboa is great city and I highly recommand this flat for a stay.