Poop
A load of it, too. As mentioned we never saw the board swapped or unit working when they were done. They were not working without an adult and were also consulting another laptop's display while working. Tool set is a joke, work needs to be accomplished with one single tool that can be found anywhere. If the product designers couldn't design a device that the mobo could be replaced in under 20 minutes with only 4 screws removed then they are idiots as well.
It is a heck of an idea and it sure would be nice if it works and I'm wondering how many 3rd world folk were consulted before the 1st world folk designed it.