Love it or hate it, the scene in episode III where Vader finally becomes Vader has some cool elements. For me, as always, the best part is seeing new droids... and then seeing them crushed by Vader isn't bad either.
But the question isn't whether Vader was perhaps a little too rough on the droids in his hospital room, the question is: would Vader want to crush the new FX-6 figure? I'm personally still undecided.
To repeat the often repeated, I'll say again that droids make me happy, but mostly I'm happy when we get something new (or sort of), that isn't just a repaint of something old. In the case of FX-6, we're basically getting an all new droid, and though it's just a variation on the FX-7, just the same, it's something new.
Things I like: Hasbro has the idea down. Keep it simple with just enough detail, and make it sturdy enough to play with. I think they managed to pull this off, and though I find the bendy arms to be a little annoying, it's not the worst thing about this toy.
Things I don't like: The base is very unstable, and why they decided to design it so that the "feet" it sits on aren't equally spaced, I can't understand. FX-6 tips over pretty easily. My problem with the arms, aside from the fact that they're bendy, is that they're not all quite accurate. (Go find a photo of the droid in the film, and you'll see what I mean.)
It's pretty typical for Hasbro to sort of half get that kind of thing right, so I'll look at the play value aspect as being the most important, rather than nit-picking about how each arm looks. In all, it's a fun enough toy to play with, and when I (or if I bother to) dig my "Vader with operating table" set out, it'll be fun to have a few of these to go along with it.
I give FX-6 a 6 (maybe an FX-6.5) out of 10 for being a droid and somewhat fun, but he's a little tippy and flimsy, so he's not quite perfect. (Some kind of light-up feature would have gotten him points also.)