Carlos's place is located in energetic Roma Norte, steps from all the best bars, restaurants, and nightlife, and close to the new spots in Juarez. His apartment is beautifully decorated and provides a quiet space from the sometimes noisy outside. The bedroom is beautiful and has nice aesthetic touches. Carlos is a great guy and gave us great recommendations.
One thing I would have liked to know in advance was that the main bathroom is connected to both bedrooms, so sound travels from the bathroom to both bedrooms, which made the room and stay feel a little less private. The outdoor area was also under construction at the time so we couldn't go outside, which was not an issue, but it would have been nice to know in advance.
Overall, his space is hard to beat for it's aesthetic and location, though probably not for people sensitive to sound.