Dan's place is small studio, well equipped, and clean. It's in a good location, close to Embajadores Metro station. Just be aware of a few things:
1) The front door opens straight onto the sidewalk, and being a studio this means your bedroom essentially opens onto the street. The windows are frosted which does add some privacy (means you cannot see out of the apartment) but it can get very uncomfortable and loud when there is someone smoking outside your door or just hanging out.
2) The shower is almost impossible to adjust to the right temperature, be careful it can go from cold to scolding hot by just barely touching the adjustment knob.
3) When unlocking the door from the inside you must push on the door to release pressure on the lock, otherwise it will seem like you're locked inside!
Okay place to stay for a few days but will stay somewhere else next time.