As you're looking at this apartment and its location, my advice would be to book it as it has everything you will want for an enjoyable and relaxing stay in Lisbon. As first time visitors to Lisbon, the location was perfect for visiting the surrounding areas, catching trains/metro or meeting guides for walking tours etc. The apartment is as described, spotlessly clean and has all the amenities you would want. From getting into a taxi at the airport, we were met at the apartment, unpacked and out exploring Lisbon in just over an hour - perfect!