I thought Jolt was one of the worst ROTF Deluxes. Small, simplistic transformation, and badly proportioned. So, now knowing that all the DOTM toys are new not repaints, I picked this up.
It's a definite improvement. The arms are still a little short and weird and he doesn't have the "whips" but it's otherwise a nice toy.
The transformation is interesting, with the windshield forming the upper thighs and the back of the car swinging around in an interesting way to become the chest (the rear windows put between chest and torso).
Like all DOTM toys it's a bit small for the deluxe, the head is ugly, and the hands are odd. For this toy specifically, the only thing I really dislike is the arms. The hands are weird long fingers, the arms are weirdly jointed and the shoulders don't lock in to place.
I say "Only If" you collect cast and can get it cheap. If you've got ROTF Jolt you should upgrade to this newer model.