I use a ION w/ a FREAK Barrel, QEV, and a clamping feedneck.
You can see out of it.
your face doesn't get shot.
Slips down when moving
Doesn't protect neck
I bought this helmet for 20$ because i thought i was getting a good deal. Looks like i was wrong. This helmet is REALLY UNCONFORTABLE. In fact, it rubs the crap out of left ear. So when i get home from a paintball day, my left ear is REALLY red and aching. But worst of all, when i'm on the field, i got to keep pushing my mask up because it keeps sliding down. So i'm adjusting my mask.... say 80% of the time i'm playing. But the mask is pretty clear sometimes. The only time it's fogging is when i'm laying down. But my neck is REALLY vulnerable when i wear this. I'm changing to a JT full coverage mask.
I DO NOT recommend you buy this product. If you want to see how unconfortable it is, go put duct tape sandpaper to both sides of your head.