Never been. I always thought Hawaii would be nice. Temperate climate with a mix of cool breeze summer days. Never too hot and never too cold. It would suck if Hawaii started getting snow although I don't know if that's meteorologically possible.
I came from SE Asia and it was hot. My mom who grew up there went back after 25 years and said the weather was unbearable. I don't know if that's because she's been acclimated to the Canadian weather or that it truly has got hotter.