Yeah, inside of like 7m its pretty amazing (.45 TTK fastest in the game)
But outside 7m the full auto function isnt very useful.
And in marksman mode, its like a slower firing RFP (.45 burst interval vs .35 for the RFP)
So while the term "garbage" is probably too strong, Im just not that impressed by the weapon (I do own one, but never use it anymore).
I wouldnt mind if they nerfed the full auto fire rate, but I dont thinks its necessary.