I didn't like drift at first but after a while I brought him and he's growing on me. He just seemed to perfect. I don't read the comics but I think that his changing sides is pArt of his flaw/ strengths. The questioning of his own beliefs and his chosen path. I'd like to read the in-depth story of why he changed sides and what lead him to this.
That's what I think would make his character more solid.

As for the toy; I like it.