Welcome to FlyerTalk!
There's quite a bit of information previously posted in FlyerTalk that might give you some answers. There is a search funtion that will help you find threads. Try searching "Kapalua" "Maui" and "Wailea"
If, after reading the materials, you still have questions, we'd be happy to help.
Here's a good thread on the pros and cons of the Wailea and Ka`anapali areas of Maui - Kapalua is about 10 min north of Ka`anapali.
http://www.flyertalk.com/forum/showthread.php?t=349979
In your search, you'll probably find that there is another Marriott property in Kapalua coming on line soon.