Flickr user jbrownell
The stability of the chair is often shown off.
Not only can it lift occupants by balancing on its hind wheels it can also do impressive things like move up stairs and simply do things like provide more stability and balance than a normal wheelchair.
But Hardeeville iBot user Bart Brophy worries about what the product's discontinuation means for folks like him and wounded veterans who often use the pricy machines to do tasks that would be impossible in a normal chair.
The Island Packet has a nice profile of Brophy and the chair; take a read here.