Predaking and Bumblebee's changes seem to be the most minor of all.
Optimus, Bulkhead, and Wheeljack don't look bad, but that doesn't necessarily mean they look good.
Shockwave looks like crap with that color scheme, especially that ugly blue.

Same goes for Starscream and Soundwave. At first, the thorn for these two were their Hasbro color scheme. Now I learn that even Takara could not save these molds. Disgusting.
I'm waiting to see if Takara fixes any of Smokescreen's problems (

). If not, unless they pull a Breakdown and release a Voyager Hardshell (or Deluxe. I'm desperate at this point), it looks like I'm skipping Takara's whole Transformers No! line.