We own here and love it!
We've been coming to STJ since our honeymoon in 1995 - the island is so beautiful and quiet, and the locals, the restaurants, the ocean, and the shopping and nightlife (both are limited) are so enjoyable.
The Westin has the Heavenly Beds, great service, restaurants, snack shop, outdoor grills, hot tub, b-ball, tennis and pickle ball courts, ping pong, (they used to have a pool table - not sure if they do again), playground, resort events - (dive in movie, local beer tastings, BINGO, ice cream socials etc.), the Westin gym, car rental on site, day trips (diving or snorkeling) from the dock, daycare services, hobby cats, snorkeling gear, paddle boards (all included in your stay) and taxi's that run you wherever you'd like to go (downtown or the beach).
We have stayed in all the phases except Coral Vista.
Only the Virgin Grand units were planned as a timeshare so they retro-fitted the other units and some were planned well, and others not so much.
All of the Westin has been re-done. Every phase has new furniture and each phase has it's benefits and I think it's every 5 years that everything gets refreshed:
Virgin Grand Villas (studio - 3 bedroom) have either semi-private pools (super close to the units) or private pools and nice, expansive views of the ocean over to St. Thomas. A very well thought out space. Parking is also right outside your villa. Golf carts will take you around resort/bring groceries and luggage if you didn't rent a car. This is the only phase that has a full size oven/stove.
Bay Vista (2-3 bedroom) have nice views of the ocean and some units can see over to St. Thomas. These bigger units are perfect for those traveling with a group and the exterior of the building is probably the prettiest of all the buildings. They are a bit up a hill, but the golf cart brings you all around. (Virgin Grand is also up a hill). With the Bay Vista Villas you are somewhat close to the main resort pool and the resort check-in area. Golf carts will help you take luggage/groceries to your room.
Coral Vista (studio - 3 bedroom). These units seems a bit strangely-placed on the Westin property. I've never stayed in these units, but the location just seems weird. The studio unit's bed is on the backside of the kitchen peninsula and the TV is parallel to the bed, not opposite the couch). These units are on more flat ground, but the shuttles can drive you with your luggage and groceries. They are close to the ocean and main resort pool and the resort "grocery store/snack bar".
Sunset Bay (studio - 3 bedroom). These units are closest of all units to the resort main pool and seemed a bit dark. The kitchen area felt a bit tight. Of the six units, 2 units have ocean view, the other 2 have pool views and the other 2 have just garden views. The studio units also have the bed on the back side of the peninsula/strangely placed TV to couch location.
You will love STJ and you will love the Westin! Enjoy!!!!!!