Because I liked the R2-D2 model kit so much, I got the C-3PO Bandai model kit. As with R2, this figure is perfectly in scale with the Hasbro Black Series 6'' figures. As Hasbro hasn't even released any version of 3PO in this scale yet, this model fills a big hole in my collection.
The model is fairly well articulated - well, about as well as 3PO is ever articulated. It comes with two sets of arms, articulated and non-articulated. I repainted one of the left arms red to match his appearance in The Force Awakens. He also comes with an alternate head (one without a dent) and a chest plate with a restraining bolt.
The model was a bit more difficult to put together and sometimes the gold finish got a bit chipped as I cut pieces from the plastic rack, but overall I love how he looks.
[note: C-3PO looks slightly taller because he is standing on a black base]