UPDATE: I wrote the review below before I had heard back from Rodrigo, and while I had orginally given the listing 2 stars, I am updating the review and rating to account for Rodrigo's prompt and very apologetic response. It sounded like he was totally unaware of the issues, and he seemed very sincere about fixing them for future guests.

Overall, my girlfriend and I were disappointed with our stay, mainly due to one issue: a nightly mosquito problem. Despite keeping the doors and windows closed, there seemed to be a constant stream of mosquitos during the night, and the constant buzzing around our heads and itchy bites that resulted made for some miserable, sleepless nights. The most frustrating part was that this problem was entirely unexpected. I had never heard that mosquitos were a problem in temperate, mountainous Mexico City. The weather was quite cool, and I didn't see any mosquitos other than in the apartment.

Apart from the mosquitos, there were a couple other issues too. First, a bad smell in the entryway for which we could never figure out the source. Second, the front door was difficult to lock and unlock. The lock is located at the bottom of the door, so you basically have to bend down or get on your knees for several minutes of fiddling with the lock to get it locked/unlocked. The problem was particularly acute at night when even seeing the hole for the key was difficult. I guess that's the price of a cool sliding door. The first night we had so much trouble that we had to get the doorman. Even for him, it took five minutes to get the key at exactly the right depth and in exactly the right place to be able to open it. Beware also, that the back door onto the balcony has no working lock. Didn't seem to be a safety issue because the apartment was on the second floor away from the street, but my girlfriend wasn't happy to find that out when we first arrived.

Despite these complaints, the apartment had many positives too. The apartment is located in a great, up-and-coming neighborhood near both Roma and the Centro (via the Metro). As others have mentioned, a taxi stand is right nearby. The apartment has great style with the exposed brick and loft bedroom, and the bed itself is quite comfortable. In fact, the whole building has been renovated in a very cool manner, adding modern touches but keeping some of the historic architectural features. Finally, we cannot recommend highly enough Panaderia Rosetta downstairs in the same building. Their delicious coffees and pastries almost made the mosquito-filled nights worth it. We weren't able to make it there, but Fonda San Diego on the first floor also looked like a great restaurant. The stairs up to the apartment go right past it, and you get a cool vantage point into the kitchen.

Without the mosquitos and smell, I would have given 4 stars.