Monica's place was very good. The beds are comfortable, the whole place is modern and comfortable, everything works well if not perfectly, and it's in a safe, quiet, and convenient location. Monica is one of the best hosts - she responds quickly and is helpful with all questions.
Check in is quite easy - however, I had 1 key that did not work well. Monica dropped off another very quickly, and I'm sure this is now fixed. The windows do not have screens, which is common in Mexico City, so you may consider mosquito repellent.
My group had a wonderful stay, and I would love to return in the future.