Place was a little worn but clean. The mattress was very worn and hard, where you could see and feel all the springs. Thankfully the couch wasn't too bad so only one of us had to sleep on the bed. Also, be prepared for low flying planes as this apartment is directly in the path inbound planes to the Lisbon airport.
Regardless, the access to transportation was excellent. This was one of the reasons we took this place. We purchased the Lisbon Card and used the public transport exclusively. For those of you that are staying a couple of days there is a Continente a short walk away.
Overall, good. But could be freshened up a bit.