Gaby and her sister Sandra were incredibly communicative and responsive, but never invasive.
Before we arrived, Gaby contacted me to let me know that the air conditioning unit had broken but that she was on top of getting it fixed. Throughout the first day of our stay, she and Sandra were proactive in seeing that we were cool enough while they worked to get the air conditioner replaced as fast as possible.
When we got there, the repairperson had accidentally locked us out of the apartment -- but Sandra arrived within 5 minutes to let us in. We felt very welcome and well taken care of.
The apartment was exactly as advertised -- cute, clean, and comfortable.
One tip: If there are more than 4 people in your party, you may want to consider bringing some extra silverware and plates. We found ourselves running out quickly.