Regina's place is clean, comfortable, and a convenient starting point to getting around mexico city. Most uber rides were never more than $45 MX and was a central location from places like polanco and the historical center.
Regina was kind enough to let us check in early as we had a 6AM flight and when we had trouble with the water heater, her brother Diego worked with our schedule to come by and resolve the issue.
The construction was a little loud some mornings because it's not just a small home remodel but a major high rise with crane behind the apartment. They typically stopped mid day and only bothered us in the early morning. Akin to a rooster waking you up to go explore the city!
The area was nice and our favorite breakfast spot lardo was just a few minute walk away. We never felt unsafe in the city, but never more so than while in la condesa. The streets aren't as busy as the rest of mexico city, so it's a great base while visiting the city.