ATD/ACD calibration

For those that have Apple Thunderbolt Displays, or Cinema Displays....did you calibrate them with Munki or Sypder when new to see if their were indeed calibrated out of the factory? If so, where they close?

Did you notice the displays drifting much over the first 6 months or so?

MCAsan wrote in post #15395122
If so, where they close?

If they're anything like an iMac, no.

Thanks for the reply. We got ATDs for Christmas. The wife did a FaceTime call last night. She is very happy with her unit.

I have not run Spyder on them yet. They look good when I compared them to our previous monitors that were calibrated.