Sia is an extremely kind and welcoming host. I arrived many hours before I could check-in but she arranged for an early luggage drop and offered me the couch in the living room—however, talking with her was so great that I even forgot about my red-eye flight and jet lag! If you're a dog lover as I am, you'll have a great puppy video exchange partner in Sia! I didn't get to interact much with her partner Ronald, but he was also very kind and helpful.
The apartment is located on a big avenue but the bedrooms face the back of the building so it's extremely quiet at night. (Unfortunately, that also means there was no direct sunlight coming into the bedroom—I tend to have trouble waking up without natural light, but I understand that for many people this might even be an advantage, not being woke up with light from the outside.)
The other guests were also quiet and friendly and the bathroom was cleaner than some hotels I've stayed in.
All in all a very good experience!