Had a great time staying at Tom's studio, which was in the perfect location for us: walking distance to La Condesa and tons of great bars and restaurants in Roma Norte. It was also fairly quiet considering how much was around it.
Tom was very quick to reply in all communications, and made finding the place and check-in very easy. The space itself was quite basic--nothing fancy--and we would have liked more amenities for a longer stay or a better equipped kitchen had we wanted to make any meals, but it was a comfortable and lovely home base for us, and we didn't spend much time in the apartment anyway. The rooftop patio was a great plus though, and we did unwind up there with a beer most nights before going out to dinner.
If you're looking for a simple but clean, affordable, and perfectly located place to stay, I would definitely recommend!