You definitely need to see it in person and using it the way you normally would...my wife has been using her X2 since Saturday - texting, email, calendar, apps, web browsing, videos, and has had zero issues w/the display clarity. She's been on it almost 24/7 as she has been quite smitten with it, so she's logged a lot of hours on it. I've used it for the same things (but just for helping her set things up and see how it works, so I've spent less time with it).
We've had zero instances when either she or I have had any issues w/the display, in fact she's commented on how much she likes it...