I went to graduate school in Hawai'i. Absolutely loved it there. This was at the time when there was a concerted effort to bring the language back. Schools had just started requiring it a few years earlier, and a radio station had just started. I am thrilled that Duolingo is offering it.
I'm Austrian and I'm learning ukulele and hawaiian hula dance at 'Inselreich'. The hawaiian songtexts are difficult to sing, the vowels are stretched and I can't get my uke rythms and the stretched vowels together. I hope, Duo helps me to understand the rythm of the language.