I have both the 1000 and the 700, and my ex girlfriend had the 400. I bought the 1000 back before it was on closeout

paid way too much for it.
Couple things I like about the 1000
-Solid
-Cheek pump actually works
-Looks good, really like my matte apollo
-Cheap (even when it wasnt on closeout)
Couple things I dont like
-The "pilot" flip down shield is worthless. Lots of peripheral optical distortion
-HEAVY
-The bottom trim is beginning to peel. Not a safety issue but really annoying
-Doesnt vent well
-On the FZ the chin vent causes a really bad crackling noise when open. I did not have this problem with 3 other bikes.
-BIG SHELL SIZE. I wear a medium and the shell size looks like a large.
Overall, I would not buy an exo1000 again. Im happy with it for the time being, but wish I would have spent the extra money for a nice Shoei. Even if I had paid less I still would rather have something else.
On the other hand, I would buy a 700 again. It still has a quality feel like the 1000, but is lighter and has a more proportional shell size. It also doesnt have the gimmicky features of the 1000, which probably contributes to its lighter weight. However, it doesnt vent very well like the 1000, and the trim is peeling around the bottom. I got my 700 on closeout a couple years ago for $150 and I think it was a pretty good deal. I gave this helmet to my brother and he really likes it too.