Very nice, clean, and modern apartment. It is very large and there is plenty of room for four people. The subway ( yellow line) is right outside the building which makes getting around the city very easy. We were there for two days and rode the metro several times to the city center.
The apartment is air conditioned which helped after walking all the hills during the day. Kitchen is small (small fridge) so cooking would be a challenge. No oven-just cook top. Nice balcony, to watch the crazy traffic, with table and chairs.
Big bed was very comfortable except the pillows. Cheap IKEA pillows which were terrible. I understand not wanting to buy expensive pillows but there has to be a middle ground. Bathroom was large was a very nice shower. However, there is a large plate glass window in the shower that allows the person in the bedrooms to see into the shower. I saw this mentioned in other post but didn't quite get what they were talking about. If it is just a couple it wouldn't be a big deal. But if you're traveling with friends or other couples it might be a little awkward!
That's again, Nuno. Can't wait to visit Portugal again.