Staying at Esther's apartment was great. She was so accommodating and understanding. We were a group of 5 traveling separately and had flight cancellation both for our arrival and departure, which made Esther need to communicate not just with me but also with my sisters (depending who arrived first/ departed last). Esther was out of town when we arrived but Isabel helped us and she was amazing as well. Both were very patient and answered all our questions immediately.
As for the space, it is just as pictured. Very beautiful, sleek, and tastefully arranged. The apartment was compact but cozy and comfortable. Over the terrace there is now construction, which disrupts the view so Esther put up a bamboo fence with many plants, which was in excellent taste and style.
It was easy to navigate from the apartment to the sites we wanted to see, although using the transit system itself is confusing. We ended up buying a 24hr pass but it didn't work on the tram, bus, metro, or ferry. Apparently we bought passes for the train only and the company would not let us return them, even though we didn't use them. I would recommend asking Esther or a local, which is best given the location of the apartment and what you hope to achieve.
Overall, I highly recommend Esther and her apartment as it was a lovely experience. Thanks for everything!