Walter, normally I dont trust monitors out of the box either. But when I placed calibration charts on both my Apple Cinema HD 27 and the HZR30wS-IPS, the difference was shocking to me.
I can understand the need for tweeking and fine tuning, but the HPs was not even close as a starting point as compared to the Apple.The link you provided to AnandTech backs up my initial perception.
I have calibrated it as close as I can. It just strikes me as rather disappointing for a monitor intended for professional workstation use in medical and graphics situations needs so much help to get it right. Where the consumer Apple monitor is dead on from the get go.
Tom Daigon
PrP / After Effects Editor
http://www.hdshotsandcuts.com
HP Z820 Dual 2687
64gigs ram
Caligit HD Pro 2 16TB.