I'm decent with it at long/mid range. Not a god, but better than most people I've seen in matchmaking.
I'm absolutely awful at no scoping, although I sometimes get ridiculous shots out of pure luck just when I need them. I envy those people who will just twitch their reticule over to you and noscope you right in the face like it's nothing, wish I could pull that off consistently.
On a side note, when people attempt to betray me for the sniper in matchmaking I normally either try my best to ignore them and keep sniping (nothing is funnier than getting a nice multikill snipe while some dude on your team is unscoping you by shooting you in the back with his AR) or, if they're really persistent, I just shoot every single shot into the ground while they're watching and throw down the empty sniper rifle at their feet like "here, take it." It cracks me up when people try to betray for a weapon that they most likely are not even capable of using.
[Edited on 01.16.2012 4:40 PM PST]