Celebrity's White House, Beach Mansion Escape

[HD2003]

My husband and I are considering the White House, Beach Mansion Escape (not the all-inclusive) excursion through Celebrity while at Grand Cayman.  We are considering this because there will be approximately 13,600 passengers in port and we do not want to deal with trying to get a taxi and going to public areas of 7 Mile Beach.  Has anyone done this particular excursion and was it truly private for Celebrity passengers?  Thank you in advance for your thoughts.

[JFontaine]

There are some fairly recent, detailed reviews on TripAdvisor.  

[Arzeena]

We took this excursion very recently while on the NCL Bliss.
Thought it was a complete waste of money. The place was packed with excursions from 3 cruise ships. Only one one stall bathroom for women. Lounge chairs were packed. No shade. There is no beach as such. Service for food was painfully slow. Our order was brought out 15 minutes before we were to board the bus back to the port. Menu items were absolutely not as described.
I would lean towards the 7 mile beach area.

[HD2003]

I ended up cancelling this as I read that there was no beach per say, just rocky.