Controllers are fine. They don't feel cheap, they don't creak, plastics feels solid. Bottom line they compare very favorably to the stock quality controllers. I don't feel like I'm adding a lot to the conversation at this point...
*However*, I did want to add that one of my controller came chipped on one side and bits of plastics where rattling inside indicating it may have been damaged before shipping (the shipping box was in good shape). That same controller when plugged in bent a pin.... I felt cursed at the time but William came through and sent replacement tracking number within exactly 38s of my clicking "send" on the email.... I kid you not.
If that's not heroic product support I don't know what is.
Buy these with *absolute* confidence. Hands over fists! That is all.
As for my bent pin it may have been due to the fact that the rows of pins where sort of angled in relation to the body of the plug. I blame this on nothing more than manufacturing teething problems but do be careful!