Yup, a lot of people have started using it. You die so quickly it's not even funny. It beats pretty much anything. If I wanted to be an ass, I'd start using it myself, but I hate it when other people use it against me, so I won't use it against anyone else. Dice needs to tweak the power down a bit like they did with the SCAR.
Heh, I have it but haven't used it yet. I never knew it was so powerful because I haven't died from it a lot.