Casai apartments are wonderfully curated and they have a very good cleaning procedure. Although I did not stay in this apartment (the host messaged me 24 hrs before my arrival to let me know that they were having some issues with this apartment) I was relocated to a different one in the same building. The location is EXCELLENT. The apartment was very clean and nicely curated. Sheets were great. They are, however, located on a busy street with restaurant and bars, so there is outside noise... We didn't mind it, especially since right now restaurants have a 10-11pm curfew so everything dies down around that time. But this is something to keep in mind if you are noise-sensitive.
Although communication with the host was not as timely as one would expect, they give you a concierge whatsapp number that is supposed to be immediate, around the clock service--I would reach out to them for anything that you may need throughout your stay.