Overall the suit was good and the cape really looks awesome with even a small amount of wind.  I didn't use the helmet that came with it (it was a mask with no back!) and instead bought a full helmet (worth it.)

I did notice that the front flap flipped up a lot, so I tied it down with a clothes pin (its all foam anyway.)

One thing thing prevents me giving it five stars: I didn't get a single woman while wearing this!  I mean, its not like I didn't try. But seriously, Darth Vader has no sex appeal and you should keep that in mind the next time you go to a party dressed like him.