Had an issue with right bumper not working on my day one controller. Sent it in and got another controller back that wouldn't sync. Called again and sent that one in. We tried everything, even making sure the headset was plugged in while using a USB to update the controller. The controller would work when wired but would not sync wireless. Waiting to get my controller back now.
So far I have not had any controller issues since the Aug. 18 update. Here's hoping they got it all sorted.
I've only used my Xbox One once since the update. It worked that one time, but it was also coming off of a hard-reboot (because of the update). I'm hoping that something miraculous fixed the controller in the update... Hmm.