Janet's apartment in Roma Norte is a perfect home base for a stay in Mexico City. It is very charming, full of amazing art and personality, and it is centrally located for easy trips to all of the burroughs in Mexico City. Janet was also a warm, welcoming host, and very quick to respond to all of our questions.
I would caution light sleepers or those sensitive to sound—the surrounding sounds of the neighbors and neighborhood are very clear within the apartment, even with the windows closed. This leads to very nice atmosphere and a feeling of being in the city, but might be difficult for those sensitive to sound.
I would wholeheartedly recommend Janet's casa for anyone staying in Mexico City!