I would highly recommend Jose's spot in Roma Norte. It is exactly as advertised, and it is beautiful architecture with a lovely scenic rooftop. Jose was the best host I have worked with and spoke great English. He gave recommendations and suggested how I could help after the earthquakes that struck the city. I plan to book here next time I come.
The bugs were not bad, the bed was more comfortable than most hotels, and it was a great experience overall. For the record, I loved the spiral staircase no matter how tight a space it was!