Leon is a great host who is very caring. He met me at the door to the apartment and showed me how to use the keys and gave me tips for the area.
The apartment itself is small for a 3 bedroom apartment, but cozy. The two bathrooms are small, but was sufficient for my needs. The water heater in one of the bathrooms was finicky, but cold showers are good for your health ;) The apartment is located in a big apartment building and there isn't much natural lighting. The windows face inner corridors, so it can be quite noisy, especially in the mornings when vacuum cleaners, heavy-footed individuals, juice blenders, etc are in full force.
The location is great and close to the main area of Condesa and Tacubaya. There is a Walmart supermarket close by, and an even better Soriana supermarket not so far away. Overall, the location is good.
I would recommend Leon's place to anyone who doesn't require hoity-toity luxury accommodations. The only downs are really the dearth of abundant natural lighting and smallish bathrooms and shared spaces (kitchen, dining, and living areas). Otherwise, the cost and hospitality are supremely attractive.