Located in the heart of the city and, apart from the Town Hall bell striking, it's surprisingly quiet due to being on the 7th floor. It's very easy to get to from the airport as there's a Metro stop just around the corner. (Use Lines 3 & 5)
The photos and apartment descriptions are spot on too. The outside area is a great suntrap, ideal for resting in-between rushing around the city.
A nearby Carrefour Express makes it easy to stock up on provisions if you're planning to cater a bit for yourself.
Oscar provided really good communication and the check-in process was very straightforward.
I had really great experience staying here and would definitely recommend it to solo travellers and couples wanting to explore the city.