If you mean the Platinum Edition of the G1 combiner, I'm pretty sure there's a really good review in the OP of its thread in the feedback section.
Here is a video from Mitch Santona comparing the G1 and the Takara reissue. I believe the Platinum version and Takara reissue are the same except for the Platinum version comes with a sword. Here is a thread with a review of the platinum predaking: Platinum Edition Predaking (pic heavy!) I have the Platinum version and will say it's my favorite G1 figure hands down.