My Dad got the Stingray. While I have not had the chance to shoot it yet the quality feels great for how much he paid. Its really nice and if had the money I would have bought one as well.
Like others have said, the DA is a little stiff on his and it would be nice if it had a safety/decocker instead of just the safety, but you can't have everything for such a low price.
The only thing that worries me about the Canik is the parts/mag/holster availability. I know they are mostly making clones of other guns but that's not to say that they will have direct parts interchangeability with the originals..
Overall, I would still buy one at the prices they are selling for.