I totally rate any barbecue that can be taken out with you and be brought back instead of littering the landscape with old rusty grills and tinfoil crap. i have a small barbie that looks like a metal briefcase. I've had many a barbecue in wierd and wonderful places and as the coals are all contained, there is very little risk of a fire as long as you tend the coals all the time and watch out for stray sparks.
This one looks very interesting. A bit bulky for a backpacking trip perhaps, but endless opportunities in the back of a vehicle or if you live in a very cold place, on the dog sled!