What makes it different from others?

It isn't all that great, actually. Really cheesy and very predicable of how certain scenes are gonna turn play out. However, I guess that's the charm of it all, because I would consider this one of my guilty pleasures.

if their story seems completely bonkers, almost like a feverish work of fiction, you ain't heard nothing yet.

It's simply great fun, a winsome film and an occasionally over-the-top luxury fantasy that never flags.