Summary: I use my PC mostly for video games. I debated upgrading my old monitor to a 120mhz monitor or a 2560 x 1440 monitor and ultimately choose this monitor. I'm a medium-level gamer, so I didn't think 120mhz would really matter for my performance and I wanted something that looked noticeably better. Wow. This monitor makes games look spectacular. The additional detail is very impressive. I am very pleased with this purchase.
Summary: I called a total of 8 times and would either get transferred to nothing (with the call being dropped by their system while in process of transferring) or the support personnel would put me on hold and then drop the call manually. None of the support personnel understood the product (all of them asked what the OSD said, this monitor has none), and none of them even so much as attempted to troubleshoot the problem with me - citing that unless I had connected an HP computer...
Pros: High sRGB gamut, WLED-backlit (not sidelit!), excellent color reproduction. Great mid-range display for graphic artists, CAD devs and audio producers. Decent for gaming (don't let the 12ms fool you, the led backlighting improves gray-to-gray response) and other multimedia like videos.
Cons: HP Tech support is quite possibly the worst I have ever experienced in my entire life. One of the TDMS emitters went out on my unit, causing it to revert to 1280x720 resolution. After testing with a total of 4 computers, HP refused to honor the warranty because I didn't have an HP computer hooked to it, and they blamed all 4 of my computers (a mixture of two desktops and laptops). I have tried 3 different kinds of Displayport cables, 2 kinds of minidisplayport adapter...
Summary: Its a major gamble to buy a monitor over the internet because if you get a bad one, the RMA process and customer support will be a nightmare no matter who the manufacturer is. But when you have something very specific in mind, in my case a 27" ips panel under or at $700, what other option is there? From looking at other reviews it seems like I got lucky with mine, no uneven colors or dead pixels.
Summary: The port for hi-res input was defective right out of the box. Without this port accepting input, all the monitor could do was take what was on my laptop screen and make it much bigger but with no more resolution. The pixilation and blur made for a totally unacceptable picture. Returning it and getting a refund (from Merchant "Portable Guy") has been a nightmare.
Summary: A good monitor is one of the best investments you can make in your computer. This monitor looks great. Plus it has more ports than Apple's Thunderbolt display, so you'll be able to use it for many years with several generations of computers. I've had this monitor for over a year. A couple problems. You can't adjust the brightness. The brightness controls don't do anything, and the Displays system preference lacks a brightness control.
2013 Review: Newer units as good as Dell U2713HM (AG coating fixed!)
8 January 2013
Summary: This monitor was released late 2011, but at some point in 2012 there was a subtle revision in the anti glare (AG) coating. (search "ZR2740w v2" for a Nov 2012 review which discusses this revision). Some speculate manufacture dates, next to the serial # on the pull out service panel on the left side) in 2012 correspond to the newer units, but this does not seem to be verified.
Nice, but poor quality monitor with extremely bad service.
4 January 2013
Summary: The monitor died after seven months of use, it kept losing picture after 20-30 minutes and had to be switched off and on numerous times to bring the picture back for the next cycle, each time shorter, probably a problem with either PSU or bad quality capacitors. According to the 3-3-3 warranty, the monitor should be repaired or fixed on the next business day. So far I have received three replacements, each of them dead on arrival.
Summary: I bought two of these about a year ago. The first one died pretty early on and HP sent a new one to replace it. The second one died a few months later and I have been struggling to get HP to send me a replacement that works. After four defective remanufactured units they decided to send me a 30" upgrade. It is also defective. Now I'm waiting on another replacement.
Summary: I owned the monitor for more than a year, been a system analyst for years and here is my honest advice. - The maximum potential of the monitor can only be reached if you have a powerful enough video card for it and use display port. You may have to adjust color profile. - Monitor fried after a certain amount of time ?! I did have this and HP just mailed me a new one. The process is painless. Since the monitor has built in USB ports, don't abuse it.