My number one priority in hotels is quiet - and the hotel has some very quiet rooms, far from street noise, elevators, etc. I've stayed more than once here and come back for the quiet.
Overall it is an excellent place to stay, with a fabulous location with convenient walkable access to shops and restaurants - and the front desk staff and concierge are excellent. But there are a few rough edges - housekeeping had issues (i.e. took away used towels, and one of the bathrobes and didn't replace them); coffee is provided in the room but the capsules don't identify regular versus decaf; and the coffee provision doesn't automatically include sugar and creamer. It is not clear from the room how to contact the front desk by phone, resulting in walking down to ask how to contact the front desk. And the light switches are very cryptic. You basically have to flick switches in various directions and hold them down or flick them quickly - so getting the desired results required continual experimenting and some frustration. (i.e. bathroom lights - on-off-switch - relatively straightforward - but bathroom mirror lights? puzzling.)
None of these were major issues and all could be remedied, but the point is, there were some rough edges which I did not expect in a 5-star hotel. The location, front desk staff and quiet were all "5 star" but in other aspects there were a number of minor issues.