rico soul: Reviews are in from China and while the general consensus seems to be that this EW expansion set is a bit overpriced, the quality is much better than the MJH powered red.
On the left, you can see how the EW mold reproduced the Bandai HIRM molded pattern on the shoulder armor where as the MJH version is smooth. The EW hands are molded together on the runner similar to Bandai where as MJH is individually assembled. What's more interesting is that EW actually added a tab on the palm to help it hold weapons, which even the Bandai version didn't have. Unfortunately though, this tab apparently isn't compatible with the tactical arms sword from the Red Astray Kai.
EW's backpack is a bit better molded and includes adaptors for strike, freedom, unicorn, sinanju and even barbatos. A gorilla arms barbie might be a cool custom.
One last thing is that unlike the promo pics, the gold is painted a champagne gold, rather than plated shiny gold.
Overall, the EW gorilla arms is a nice set, with fit and finish almost comparable to Bandai.
The MJH powered red provides more value since it comes with the bootlegged MJH HIRM Astray body for only about $22USD more at the time of this posting on Gundamit.