After a lot of digging, I couldn't determine the exact panel type. I found some theorizing that it is a S-MVA panel and a statement that it has less color shifting than a TN panel, but it still isn't as good as a S-IPS panel.
For color calibration, a really key detail is the amount of color shifting that you see based on viewing position. If you don't get consistent color regardless of how you look at the display, then true color calibration is impossible since color will change even as you look from one side of the display to the other.
I have not personally worked with any S-MVA panels, so I can't speak directly to their suitability for color accurate work. It's also not a particularly high end panel aside from the resolution, so my guess is that wouldn't be ideal compared to a similarly priced, lower resolution panel with better screen technology.
The inconsistent brightness described by the review that James Snell mentioned in the comments below indicates this monitor does not meet the minimum requirements for holding a calibration. It also has a slow refresh (not a problem for viewing, but might be for making edits) and some reports are that the color depth is comparatively so-so. These problems mean I would not want to use one as my primary editing or review monitor. A lower resolution, higher gamut monitor with a larger emphasis towards color accuracy would do a much, much better job.