The place is very well designed and stylish - just like the pictures! the building is also well equipped and there are very friendly staff around 24/7 (for check-in and for letting guests in). The only things that were not great were the noise (you can hear airplanes, highway noise etc...) and the lack of ventilation in the flat - there's barely any air flow throughout the day/ night.
Other than that it was worth the price and the location's proximity to condesa / Roma was perfect.