Guillermo is an excellent host and provides very prompt responses to any requests. We arrived on a late flight into the city and he was accommodating and able to meet us at the building, despite of the time. The apartment is quite accurately depicted by the images in the profile, and is very centrally and conveniently located. It is fully stocked with linens, toiletries and kitchen supplies, and perfect for a stay (of any length) in Mexico City! My only complaints would be: the apartment does get quite warm--we fixed this by opening the windows and turning on the fans--and I couldn't find an accessible outlet in the master bedroom, outside of the bathroom.