Luis's place is well situated in the Barrio Alto area of Lisbon. There are a bunch of bars and restaurants near the place (it is noisy, but I sleep like the dead, so it wasn't a problem for me). It's about a 25 minute walk to the water. it would probably be a 15 minute walk if it was flat, but because Lisbon is so hilly it takes a little longer.
The place is nice and standard. I bedroom, a small living and kitchen area and a nice sized bathroom with a small shower (tall people may need to duck in the shower!).
Luis was nice and responsive and if it is a great value for the $$!