I got mine today. Lovely build quality (as is the norm for Dell). I've got a i1display plus which I've just calibrated it for the first time ever on any monitor. Sort of a impulse buy at the time after watching hardware unboxed not approving of the out of the box calibration.
Sorry if I'm going over old ground in this thread but I'm not sure I can get past the oversaturated colours this model brings even after hardware calibration. I knew it was a wide gamut panel to begin with but I didn't really do much research specifically into what that entails annoyingly. I've tried the reference mode in the Nvidia settings which does level out my colour preferences a bit but after using a bog standard 60hz Dell panel for 4 years it's hard for me to adjust to. I'm not sure if that's even good enough grounds to return the item to Dell anyway so I'm probably going to have to stick with it. 1440p on 27' is lovely after using x2 24 1080p's for years so there is that
Colours are too warm for me and after trying 4 panels- I've given up and returning and getting the 27GP850-B from LG from German forest site for £399 all inclusive. Shame as good price and the Dell has all the features I was looking for but £92 cheaper