I don't have the one you asked about, however I know a lady with one. She adores it. She takes it with her to workshops/classes etc. You can buy different insets for different machines. While it is pricy, it would hold up to the weather in Hawaii. It folds up small, fits great in special carry case, and you could move it around your small home easily I think. Hers appears to be extremely sturdy, and it didn't shake at all.
As far as price, you would really need to search for best shipping. Ask at the few quilt shops there are if they have any customers with one? Contact them for info? And as another poster mentioned you can get local shop to cut the different size insets you might need if you own more than one machine.
I would love one, but it's definitely not in my budget. I can dream...
Kat