I hardly think that I will be ordering one, not because I feel it is gimmicky. After viewing the video of the tear down and reassembly it does from as much as can be seen to be good quality for what it is. If I were heavily into micro tech repair where on a daily basis the requirement to remove or replace 100's of the tiny fasteners would be involved I might consider it. I do own 5 or 6 of those seemingly million selection 4 mm bit sets for the odd times when I do have to work certain devices.
It might make a good Christmas present for my 43 year old son in law since he has already had 1 hand surgery as result of having to fiddle with those tiny fasteners in his tech repair business for the past 20 years.