Entry instructions are sent the day of arrival and very detailed. I was upgraded for free, and the suite is lovely. The bed was quite soft, which isn't my preference. However Room M is right next to kitchen and dining area and the walls are very thin. I was awoken every morning at around 6:30 am (quiet hours are 10pm - 6am), and it was extremely difficult to get back to sleep. There was also an issue with insufficient cutlery, presumably because they were in the dish washer. I spent some time hunting for dishes and cutlery as well, since none of the drawers or cabinets were labeled.
Didn't see any staff except when I was checking out and a woman knocked on my door right at 10 am. She only spoke Mandarin Chinese though, and seemed quite annoyed she needed to use the translation app on her phone.
The area is fairly quiet, although you can hear the SkyTrain. Take normal safety measures, the neighbourhood didn't have any litter, graffiti or drug paraphernalia around.