I am not sure how do you leave a review based on 4 guests occupancy, when you only requested a reservation for 2 and paid accordingly... There is nothing creepy in having 24h access to a building through a digital code especially that the code also works on the Main entrance located near Montauk restaurant (some guests never read the instructions we give them).
This is not a hotel, it is a condo building with a front desk that manages some of the units. Again, the instructions were clear, the unit you rented was not managed by the front desk staff.
Finally, sofa-beds are not always comfortable, the ad on here is clear, but again, your reservation was for a couple, not for 4 guests, and the sofa bed was not prepared to accommodate you by our staff. If you had a reservation for 4, it would have been prepared better.