This isn't new. It's been for sale for months.
I have used it twice on long layovers between SYD and CAI.
The rooms must not be reserved by P pax. You pay USD $100 and there is no time limit. You are basically given full P service with at least 5 staff standing outside the glass door. The room features a living and dining area with a private bathroom. Menus are brought to you which seem to have more items than the standard restaurant. You have a dedicated waiter and they will reserve your spa treatments by sending spa staff to you.
On a 5+ hour layover my traveling companion was tired and fell asleep on the couch. They brought them a quite and pillows - I found this to be worth it in itself.
The rooms generally has P tableware, but they use standard F Lounge crockery when F pax book. Other than that the service is the same.
