I bought two of the Nykos when they were on sale on Groupon. I want to say they were 12 or 15 bucks each. I had to buy two to get free shipping. You might check Groupon to see if they're still available.
That being said, the controller is ok. I'm sure Nintendo's is better. If you can get the Nyko super cheap then go for it, but if it's a matter of saving 10 or 15 dollars then splurge and go first party.