I have spent over a month there and can recommend it.
Perfect location right between Roma, Condesa and Zona Rosa. Staff are friendly, it is good knowing there is always someone controlling the entrance.
Room is well sized, bed comfortable, shower big,...
Kitchenette is very basic, only for fridge and microwave, good enough if you don't need to cook.
There are a few downsides... minimal space for your clothes even for a short stay, let alone longer. walls are so thin between rooms you'll hear everything. The whole building shakes when bigger trucks drive by on the main streets.