This was the only First Edition figure I was actually impressed with. It was a little fiddly, but not as bad as other figures. I was just amazed at how the arms and leg bits fold together, into proper limbs, from an accurate car mode... without it cheating like many movie toys by being a shell-former.
And not only is it kibble-less in robot mode - it actually incorporates the front of the car mode into the back of the robot, by way of hinges to fold up against the robot (most figures just have a back panel just hanging off or away from the actual body of the robot). That was very impressed by that. Whoever designed the engineering of this figure - I am in awe of their abilities.
A "must buy" figure... even if you don't like TFPrime or intend to buy any of the toys.
(I don't see how the next Dlx Cliffjumper mould could possibly outdo this one)