My stay was pleasant and communication with Susana was smooth. She was very nice to let me check in a couple of hours ahead of schedule.
There was an important issue that affected my stay, though: mosquitos; lots of them! The first day I left the balcony doors open and apparently that attracted many of them. They kept buzzing and biting at night. I thought this problem would subside after killing ~10 of them on the first night, but it didn't. I never opened windows or doors again, but I noticed that they didn't lock properly. Their wooden frames are old and worn out, and they don't seal well. Mosquitos kept finding their way in through the cracks during my 1-week stay. There were no screens either.
Other than that, I'd also suggest additional attention to small details: e.g., no hand soap, no kitchen towels, nowhere to plug the microwave, no trash bags... I know they're small things, but I'd expect them to be taken care of for the amount of money being charged.