Ulises's apartment was great and convenient. The El rastro market was just outside the apartment and it was an excellent atmosphere. The studio was clean and kept well. Unfortunately we didn't get to meet Ulises.
Although mentioned in the listing, we did not have breakfast, but maybe Ulises can could arrange it if requested.
And finally, it is important to note that the studio is on the fourth floor with no access to elevator. Something to keep in mind if you are lugging a heavy bag.
All in all great stay and highly recommend it.