As noted, it is said to be an official loaning out of the toy to a fan reviewer... like Hasbro did with us 2 years ago with Studio Series Starscream.
Some screenshots from here...
That is a BIG toy... but I think it is going to be very hollow for stability of the joints and to hold together in jet mode, which might make it feel a little cheap.
The figurines have moving arms and legs, which is amazing for their size.