Went through last night landing just before midnight. Got to lounge and no rooms, actually had several rooms where the guests were paying for 6 additional hours to extend. I was disappointed to hear this as getting a complimentary room for 6 hours max seems generous enough for the small fee to extend it at risk of leaving others without even 6, odd policy. I totally understand and embrace the first come first served policy, but I would not allow any extensions paid or otherwise, unless if you establish a WL with buzzing coasters like other lounges for showers.
15 rooms go extremely quick and they have to clean them afterwards as well, which IME are done very well. Had 7 hours till my flight so went to the Oryx hotel and paid the high cost they have.