I went on a 10 the other day on black shield with a grim citizen. I am not top 200 but I can keep up with just about anyone as all of my friends are top tier players and I play with them exclusively. It can be done. Know your angles don't expect the weapon to carry you and you will be just fine
Yeah they can be fun of if used correctly with shotguns and pacing your engagements. But so can any weapon. I do think that overall the weapon balance is at its best as everything is still usable.