This apartment was absolutely great, I highly recommend. The location of it is really the main highlight (although all other aspects were exceptional). I spent about five days in Lisbon, and no matter what you want to do or see in the city, that is of value, you'll begin or end near this apartment. It is up a few flights of stairs so it might not be for the weary, but if you don't mind, it's worth it. There is air-conditioning in the main room, and in the two bedrooms. The main air-conditioner wasn't working when I arrived, but it really wasn't a big deal, it's so close to the ocean and the breeze is so significant, that the open windows cool things down decently. Check-in was simple and flawless. 5/5 experience on all fronts.