Not sure if it was a joke, but watching Prime: Beast Hunters won't help you understand Beast Hunters Wheeljack's upgrade. It was a toy only thing, never made it into an episode.
Blaster, Soundwave(though I have SoundBlaster), and all the data discs are indeed awesome. While I wish the discs were more articulated, it's great having all the major players updated for a new generation, and being able to legitimately be launched out of Soundwave or Blaster's chests is a fun novelty. The remolding job is also pretty amazing, making them feel unique with only a few new parts.
And I also think Sandstorm is more solid than Springer. Fantastic remold there too.