We stayed at this resort the from 11/7 - 14. It was a beautiful property very similar to the Maui one (except the lack of walking distance beach access).
Location wise, it is the North shore, so you definitely get the quite and residential feel to it. But we did end up driving a lot to get to places. It does have a good size shopping plaza right at the main entrance which also has a full-size grocery store - Foodland for you to stock up your needs (a bit pricey compare to the ones at Lihue).
We have kids under age 5 and we loved the kids pool/slide. It was just perfect for them!
We did use the St Regis beach, we drove there (not taking the shuttle) and it is all valet parking only, but free! The beach is small and very shallow with reef, which makes a good snorkeling spot.
We did use the business center to print out ticket vocher for our Luau show that we had booked online. It did cost about $6 for the internet access and printing. So the lesson here is, print out your ticket before you come! They do have free boarding pass printing if that applies to you.
Finally, we wanted to thank the house keeping service for contacting us after we left. They had found some of our kids items left behind - small bib, sand box toys, and some T-Shirt, small items that I wouldn't think they would care calling us. When I contacted them, they appeared to keep a good log of everything found in the room, very impressive.
Overall, a great experience!