I like the 27-inch size, it is great when working with multiple windows open. Very easy to set up. Display image is not quite as sharp as my previous monitor but works well for daily work.
This monitor provides the "real estate" to allow more room for my photo-editing program to work with. The "buttons" on the back of the monitor let me fine-tune the screen so that the image on the screen matches my printouts.
I like to do genealogy and read old documents, etc. These monitors are the best for looking at all the censuses and handwritten letters and pictures. I have both monitors together on my desk with a 10" space between them (that's where the drive is). When I have been stymied in the past by not seeing things clearly on a monitor and just magnifying the text won't work, these big ol' buggers are a boon. Not only can I see what I was looking for easily I am able to see other things better, too. I am really glad I got these.