Fascinating location. The old Quarantine Station has an interesting history. The hotel's location is spectacular above Quarantine Bay, which is lovely to swim in.
There are more than 250 steps from the accommodation to the beach, so it helps to be a little fit. Certainly the walk up is a good workout.
Ostensibly there is a shuttle service to and from the reception area and to the beach. This was hit and miss. Sometimes they came when called. Other times they didn't. So again, being fit (or super patient) is helpful.
The rooms are quaint, quiet. There's only one power outlet which can be limiting. Bathroom and toilets are located in a separate, nearby block. Not super clean, and a bit smelly, but adequate.
Food etc has to be brought in, or you can use the exclusive restaurant, which was booked out before I arrived, so couldn't comment on that.
If you have time and are healthy and prepared, it is an interesting destination.