Susana's place is awesome, and definitely a steal at the price. My wife and I stayed for 4 nights and were highly impressed. Susana is a great hostess, extremely friendly. She lives close by and very easily accessible if necessary. Although we came at a late hour she was there to receive us.
The location in Roma Norte is seven stars, close to great restaurants, amenities etc. What we found stunning about Mexico City is with Uber you could go to all the top tourist attractions whether it was in Historic City, Polanco or Reforma avenue for $3-5 USD from our apartment. The Uber ride to the airport was $6 USD. Incredible!!!