It can be a nice intimidator. Great support not only for sniperin' but also for those who like to assault. very easy to switch into three different positions even in games, and feels great when mounted on your shoulder.
For those who like to snipe, and like to use sights, the stock could get in th way, depends on the kind of mask you have, but from readin' the previous reviews, it seems that everyone else has this problem. Mine doesn't really turn a lot, since I mine came with a ring that you can tighten against the body.
Overall I think it's a nice product, but it's not a necessity so if you got the moeny for it, sure why not get it, but don't rush it.