From a personal point of view, this gun is absolutely awful. Yes, it looks extremely pretty, but its attractiveness will not help you during assassinations. It's very weak, taking about four to five shots just to kill someone at medium range, only has 20 bullets, and has awful accuracy.
This gun is meant for close encounters, which would explain why it's horrible at a distance. Its suppressor is very silent, meaning you can fire the gun next to someone, and they won't hear it. So in reality, its only purpose is for headshots, and disabling security cameras (but I can use any other gun for that...). Other than that, it's pointless.