From a fluff perspective, I've always thought it was one of the coolest figures in the game. And a 20 point boarding shotgun impersonator would be nasty. But I've never seen it in action, probably because it's only really good against Yu Jing. Also, the fact that it carries D-charges and is only 20 points would make it useful in ITS, but I guess there it's limited because Mercs aren't allowed.
Have you guys ever taken one of these? (a merc, not the JSA version)