We were at WH last month.
To call it a "Tiki Bar" is a stretch. When I think of a Tiki bar, I think of a stand-alone hut with at least one open wall and some limited amount of seating at the bar. And such a Tiki bar would allow you to order mixed drinks, exotic drinks and beer/wine; perhaps with a limited menu of food items.
This is not the case at WH. It is located in the store, not by the pool. You have to go through the pool security gate to go between the WH "Tiki bar" and the pool. It is a counter located on the front side of the store. It offers a few types of beer and wine, hot dogs and nachos (I think). No seating. It more closely resembles a 7-11 counter that serves beer and wine.
This is it on the right side of the photo:
Here's a view from behind the counter:
It wasn't in operation while we were there, but there was a small bar/cart that could possibly be moved into the pool area. this was tucked away in a corner of the seating area between the store and the movie room, still outside the pool area. The sort of thing that might be rented for a special event, but is closer to what I think of as a Tiki Bar:
By the way, the following link will take you to some coupons that you can use in the Sundry Shop:
http://www.windsorhillsmaster.com/doku.php/amenities/sundryshop