Overall a great place to stay in the heart of Roma Norte. The security, amenities (do your laundry free of charge!) and location were excellent. Walkable to literally everything. Others have said this too — go to Panadaría Rosetta is right down the street, it is soooo good.
The two things I’d advise that were also mentioned in the reviews:
• You should definitely wear ear plugs while sleeping. The walls are extremely thin, and this helped us a ton.
• Depending on the apartment that gets assigned to you (my partner and I stayed in U), you likely won’t have much privacy because the windows face into other apartments. Because of this too, there is very little sunlight. So we really only used the apartment for quick naps and sleeping, not a place to really lounge in (but again, you’re in a beautiful neighborhood so why would you want to be indoors anyway!) If you like your room dark/blackout curtains when you wake up… this one is for you. For us, we preferred more light.