It's hilarious and very well done - the casting has been great this time round and the primetime show on ITV1 is really a masterpiece of editing: it's snappy and very watchable, quite an achievement to pare down 24 hours worth of tape into something that slick. It's not art and it's not high culture but it's excellent telly.
It's hardly luxury - those camps look very basic to me; additionally they've got cameras on them 24/7: there's no privacy, it will be stinking hot and it's the wet season in Queensland - they could at any time be drenched by a tropical storm. Furthermore they're usually hungry, they're probably very bored, too, they're mostly pretty dirty and they're having to live on top of one another plus they face the possibility of having to do those really horrible trials. Not my idea of comfortable or fun, I'd want a fair bit of money for doing it, too.