Good details in this post: https://www.flyertalk.com/forum/30029755-post302.html

The Atlantis is made up of 4 towers that will participate for redemption stays. They are as follows:

Atlantis, Beach Tower - Do not participate in Marriott reward booking(?) (old Category 7)
Atlantis, Coral Towers - New Category 5 (35k) (old Category 8 (from March, 2018 https://www.marriott.com/marriott-rewards/use/category-update.mi)
Atlantis, Royal Towers - New Category 6 (50k) (old Category 8)
The Cove Atlantis - New Category 7 (60k) (old Category 9)

Apparently, you cannot redeem points for a stay at The Reef Atlantis, but you can earn points on a paid stay there.

Points are earned for room rate only. No points on incidental spend. Platinum Arrival Gift (PAG) is 500pts or food/drink amenity. $20 internet fee* is NOT waived for Gold/Plats per Marriott's T&Cs. For rooms that will have more than two people aged twelve or over, there is an "additional adult charge" per person. *For Royal, Coral, Beach Towers, internet is included as part of the daily resort fee of $50.

"For clarification purposes, the daily charge is not a resort fee. The additional charges associated with the stay currently include mandatory gratuities and a utility service fee per person per day. The amount can vary by unit type by building. These additional charges have always been in place at Atlantis."

ADDITIONAL CHARGES:

Guests of Atlantis, Harborside Resort, The Cove and The Reef Atlantis are subject to an 20% charge per night that includes taxes, the Paradise Island Tourism and Development Association levy, the Nassau Paradise Island Promotion Board levy and compensation for servicing your reservation. In addition, guests will be required to pay a mandatory gratuity and utility service fee of (i) up to $25.95 per person per day depending on unit type for Atlantis guests, (ii) up to $20.70 per person per day depending on unit type for Harborside Resort guests, and (iii) up to $65.95 per person per day depending on unit type for The Cove or The Reef Atlantis guests. If you purchase a pre-paid package these charges are already included in your package price. If you do not purchase a pre-paid package, these charges will be assessed upon check out at the property. Please be advised that all mandatory gratuities, taxes, levies and service fees are subject to change.

As of 01-Jan-2015, In addition to the previous 20% tax on room rate and purchases, there is an additional VAT of 7.5%, 12%* (as of July 1, 2018), making a total tax on room rate and purchases of 37.5%. This also applies to additional adult fees (for more than two person ages 12 and older staying in the same room), but does not apply to the mandatory gratuity and utility fees. https://thenassauguardian.com/2018/05/30/vat-hike-to-12-percent/
*If you booked prior to the VAT increase, you should be able to have the original 7.5% VAT honored. https://thenassauguardian.com/2018/06/07/hotels-and-resorts-allowed-to-honor-prior-bookings-at-7-5-vat/


Atlantis, Paradise Island, Bahamas participates in Marriott Rewards as follows:
- Points or Miles may be earned for reservations booked through www.marriott.com/atlantis or by calling 1-855-696-4732.
- Points or Miles will not be earned and Points cannot be redeemed for reservations booked through Atlantis Paradise Vacations, Atlantis.com, or AtlantisBahamas.com.
- Reward booking can be done online from Marriott website. You can also book stays with points advance (borrow points). The cancellation policy is normally 14 days in advance. Points may be redeemed for stays only by calling 1-855-696-4732. At this time, redemption stays cannot be booked online.