I have not heard anyone using it. The only printers I saw is on Pantone website. Here is the link:
http://www.pantone.com/extended-gamut-printers
if anyone can give us their opinion please
That's a great link. So I checked it out by going to the listed companies websites (dabob put down your coffee now and hold on to your socks)
Cyber Graphics Memphis, TN - they use what they call "CyberXtendTM" with Orange, Green and Blue - not Pantone's EG Violet ink - so I'm not sure they use the Pantone process at all.
Disc Graphics Happapauge, NY as previously noted are the folks who printed Pantone's guidebook.
Gamse Litho Baltimore, MD - no mention of any kind of extended gamut process
Graphic Packaging International, Inc Wayne, NJ - no mention of any kind of extended gamut process
Hammer Packaging West Henrietta, NY - they list their process as "HammerPRISMâ„¢" but don't descibe it
Metro Packaging Wayne, NJ - They're no longer in business having been acquired by Graphic Packaging which as previously noted do not mention any kind of extended gamut process
MPS South Plainfield, NJ - no mention of any kind of extended gamut process
Rohrer Corporation Wadsworth, OH - no mention of any kind of extended gamut process
Thoro Packaging Corona CA - They state that they use PANTONE® Hexachrome Six-Color Process - a product Pantone abandoned some 20 years ago.
Transcontinental Ultra Flex Brooklyn, NY & Global - states "In-house expanded gamma [sic] color separation" which of course is not what Pantone's system is.
So, something appears not to be what it claims to be (or not to be).