Paul's place is great. The location in Condesa is close to everything you want, bars, coffee shops, restaurants, and wonderful Chapultepec.
My girlfriend and I plus two friends were staying for a week and enjoyed the place after we got in. Unfortunately it took us a long time to get in. The code Paul had provided for the lock was incorrect, and he was no responsive till 5 hours after the checkin time we had agreed on. This was because he was in Japan and sleeping. After some back a fourth we were able to get in but it was a poor start.
A few things to note:
1. The upstairs bed is a couch pull out and a bit short for a six foot man. It also gets hot up there in the morning.
2. The internet only functions well enough for video calls in the main room, outdoor terrace and the pink kids room. In the other rooms there are high latency or low bandwidth.
Would be happy to stay again, even with our experience.