Luis's place was great! The neighborhood was awesome with a lot of cool cafe's and Luis was really friendly and welcoming. I'd definitely recommend this place to anyone visiting Mexico City.
My only warning would be, depending on your luggage, the room could be a little small, but I didn't have a problem with the size and I thought it was cozy. I used the top bunk to store my luggage and I put everything else underneath the bed.
Luis also speaks great English and his mom, who helps with the Airbnb, is really friendly and likes to practice her English with the guests too. If you're an English speaker you won't have any problems here.