The location to the train station was excellent, couldn't have been any better. Getting into the centre of Lisbon was so easy so highly recommend here is you don't want to pay central prices. Taxis from the airport are reasonable too although Uber cheaper.
It's 20-30 minute walk to closest/good restaurants in the marina but totally worth it - amazing tapas at the end of the row!
The flat itself is very impressive when you arrive, the living room is bigger than expected and furnished well.
If wanting to use the pool, check permissions with owner as need to be guests.