Well mine has arrived!!
Have had a quick whizz round with it and I can say it certainly won't be going back!! It's really lifted the pile on the carpet, something the Henry never seems to do (despite having pretty strong suction). It seemed to "do" the edges of the carpet perfectly well. The bit of carpet at the bottom of the stairs which looked rather flat and tired, looks flat no longer.
It seems really easy to push on the floor, no more back aching bending as with the Henry and is light enough to get upstairs easily.
No - it ain't the prettiest, but it ticks all the boxes for me. It's a keeper.