The apartment was very nice and clean and in a decent area - walking distance to the metro and a supermarket very close by. The communication before we arrived was amazing - very prompt replies to all emails. Check-in was great - Carlos picked us up from the train station and since I had no phone service he came and found us (it was probably obvious as we looked lost). He drove us back to the apartment and told us all about Lisbon, the best areas to see in the short time we were there, where to eat, what wine we had to try while in Lisbon (and then left us with a bottle!) - just extremely pleasant and helpful. I would definitely recommend staying at Rui & Elsa's apartment if you visit Lisbon.