I really recommend staying with Tom and Juan Carlos! They were super responsive — both prior to my booking and during my stay. They also allowed me to store my luggage before the check in and after the check out!
The building is ideally located, very central and near to the very nice Mexico Parc. The roof terrasse is also a nice perk—ideal to rest, or train!
The flat is very well equipped and has a full kitchen (which I ended up not using due to abondance of great food all around). The bed is comfortable and we can’t hear the traffic from the bedroom/flat, which is great! There is also a huge walk-in closet, very handy to leave luggages wide open but out of the way, or you can hang and store it all if you prefer.
The only minus to the flat is that it is dark inside even during the day, as the building and courtyard block the light from reaching the ground floor. It won’t be an issue if, like me, you spend most of the days outside, but I would recommend one of the other (higher) flats if you foresee to spend significant amount of daytime in the flat.
All in all, I hope I will be able to stay there again on my next trip!