This looks to me like very little privacy actually!
At the prices the W is charging, it may be better just to rent a private villa with cook and pop in here for drinks! I have had pretty good luck at Samui actually renting a villa that had a cook and daily maid/pool service for less money than this hotel- and at least there was privacy. Also Karma Samui, similar price point and better location than the W, has far more privacy and very luxurious villas all with private pool and some really stunning views.
http://www.samuiislandvillas.com/vil...FYOIDgodMj8OIQ