The apartment is large and clean, but is situated right next to a huge highway. This makes it very noisy at all times with poor air quality.
While there is indeed a view of the Castle, the outlook is directly onto the highway. You won't ever really enjoy looking out the window and you definitely won't want to stand on the balcony.
I stayed in a few different places in Condesa and had great experiences. This was much more expensive and a big disappointment.