We very much enjoyed our stay at Kay's apartment in The Heritage building. Check in was as per the instructions but take note of the suggestions for baggage as getting heavy bags out of the garage is a bit of a struggle due to the stairs.
The apartment is very clean and tidy and Kay provides some thoughtful extras such as shampoo/conditioner, cookies, plenty of tea/coffee, etc that are not necessarily standard in typical Airbnb apartments.
One thing we had an issue with, which is outside Kay's control, was the use of the shared laundry facilities on the same floor (5th) as the apartment. There is a washer/dryer in the apartment but Kay suggests to use the shared dryer as it is quicker. However, we found that the 5th floor facilities seemed to be monopolized by somebody doing "commercial" levels of washing. If you have the same problem, we found that we were able to use the 4th floor facilities without any issues.