Thanks for all the replies,
I am looking for something rather isolated as we don't really need the Phuket Night Life this time around and are looking for a relaxing family holiday (with grown up kids - 15 and older).
We have looked at other options such as the Royal Phuket Yacht Club or the Le Meridien, which seems to be a bit dated. The best option I can see so far as in Privacy, Price and Facility is the JW
Marriott. We are willing to spend a bit more though if the reosrt on a whole is a lot better.