Protects you - It's a paintball mask, it does what it's supposed to do.
Cheap - You cna get full face protection for $25.
Fog - They fog up like crazy!!!
Uncomfortable - Doesn't always sit right on your head, wobbles around a little also.
Can be hot - If you play in the summer, there isn't enought ventalation.
It does its intended job and it does it right. I have seen masks that are a lot worse and many a lot better (see the morph mask). If you want a cheap mask, get this, but I would save my money for something good. After factoring in price and the other 4 things, I give it an 8.