Some of the initial reviews of the Studio Display are saying the webcam is pretty much subpar. Apple is saying they will fix it in a future software update. This is becoming a far too oft repeated scenario with Apple: Turn out subpar stuff then spend a year trying to improve it. One comment I read said basically, "Apple's response is 'you are looking into the webcam wrong!'"
I wish Apple had more of the spirit of Woz, and less of the spirit of Jobs. They really need some good old-school hackers therein to get them back on track.
And for the younger ones here, "hackers" in the 1970s had a different meaning than it does today.