I watched this a few days ago. Really hated the first 45 minutes or so w/ everyone "acting out" and wallowing in dysfunction in ways that, as Mike said, felt forced. I thought it did get more involving later on, and the attempts to show the more staid aspects of Hawaiian life were commendable. Clooney was good, but I also thought a schlubbier actor would have made the conflict with the daughters more believable and the wife's infidelity more dramatic.
Also mildly distracting was the rarely-seen Michael Ontkean showing up toward the end in one scene, with no dialogue. I assume that role was reduced during editing.