The conclusion of said review gives this monitor a thumbs up for use by photographing professional, which could lead some in the wrong direction.
Newer LCD monitors are being geared towards gaming and high refresh rates which leads to poor viewing angles and poor colour accuracy.
The current trend in LARGE panels is to us a TN (twisted mnemonic) type panel, which for the most part is the cheapest to produce in large sizes.
TN is also the poorest technology in terms of view angles and colour fidelity. More info on Panel Technology can be found at...
Looking at more technical reviews, this ViewSonic VP2250wb does do well in viewing angles, though it does suffer from colour shift as mentioned in the Shutterbug review. It also offers a setting to turn off Overdrive, which improves image quality, and is only useful for fast frame rates.
I the long run I do not believe any 'professional' will be happy with the ViewSonic VP2250wb for editing photo's especially if colour accuracy is important. Yeah, it covers 104% of the colour gamut, but those colours can never really be accurate.
Look for S-IPS panels, which will probably cost 2 or 3 times as much, but if accuracy is important, this is the only choice.