I've stayed at Grand Wailea once (October 2007) for seven nights and while I had a great time I attribute much of the great time to Maui and not the Grand Wailea. I found the hotel to be average at best (I remember nothing about the room), the restaurants were grossly overpriced, the pools were not heated, and the feeling of being nickled and dimed was pervasive.
Since that visit it is clear that the nickel and diming has only gotten worse as customers are being expected to bail out the stupid decisions of the business-people (and I use that term loosely) who grossly overpaid for this property. Over the last year I have received multiple surveys from the Grand Wailea, and it is very clear that they are looking for more ways to get money.
The people who run this hotel just don't get it. I go to Maui so that I can be on Maui. I go to Maui so that I can relax. This attempt to turn Grand Wailea into a Maui version of Polynesian Cultural Center (only with alcohol) is really irking me.
I may be in the minority on this one, but this place is no longer on my list of hotels that I will consider for future stays. I'll be in an oceanfront gold Kapalua villa in less than two weeks. Sorry Grand Wailea, you never had a chance.