Our two-bedroom villa was very nice, although not as luxurious as a 5 star hotel. It was set back a little on a low bluff overlooking the ocean, so that reaching an actual beach required a walk of about 2 minutes. The view from the dining area, kitchen, and master bedroom was lovely.
The villas seemed to be about 15 years old, although generally well maintained. Furniture was in good condition, although not high end. Bedrooms and bathrooms were nice, and the kitchen was fine but small. The only significant complaint that I have about the villa is that the wall air conditioning unit in the master bedroom was very noisy, so running it at night wasn't possible. This wasn't a big deal for us since we were there after Christmas, but it would be a problem in the summer. The rest of the villa was on a central air conditioning unit that was fine.
Housekeeping service every three days was fine (more frequently for an extra charge), although the tile floors throughout the villa could have used more thorough cleaning. The bottoms of one's feet or socks would become brown after walking around for a while. I suspect that the maids only swept the floors and skipped mopping them in order to save time. When I asked that the floors be mopped, there was some improvement. I wouldn't say that this was a real problem unless you like things really clean. The rest of the unit was kept very clean.
The Kapalua Spa was quite nice. Staying in the Villas gives you free access to the spa's facilities including small pool, saunas, steam rooms, whirlpools, and sunning area.
There are a few things you should keep in mind if you are considering these villas. First, Kapalua is a little secluded, at the north end of the west side of Maui. If you are looking for seclusion, that's great, but if you want more action I would recommend going further south to Kaanapali, Lahaina, or Wailea. Second, it defintely is windier around Kapalua -- if you need less wind, go further south to Kaanapali or beyond. Third, the beaches around Kapalua are small, but fine. And last, the two pools at the Kapalua Bay Villas are relatively small and rectangular. They're not terribly crowded, and fine if you don't need a big pool complex, but I wouldn't recommend them for a family with active small children or teens.
My family enjoyed our stay here, and we would return, although not during the Christmas holidays when the rates were very high.