Looks quite a neat and efficient design. The only thing I can think that might be a problem is if you were using a non standard fuel, it might be a bit of a faff adding more fuel to the stove without having to take all the food off etc.
Would be handy if you were camping or based in a vehicle etc and didnt want or couldnt have an open fire.
It would also be fairly expensive if you added the extra bits he shows in the video, £90 for the basic model plus the other bits would probably work out around £150 in total which (price wise) would put it up against quite a few decent stoves