We just started selling the Citrus in my store, and I've only really shown it to one customer so far. We didn't have issues trying it out. It may have helped though that she was a brand new touch-screen user, and typed slow enough for the lag to not be an issue. so as far as i could tell from my demo, the phone really isnt that bad. I can bet that for an experienced user, though, it's not the phone you want.
I purchased this phone and used it for a week, and like the review, about the only thing good about it was the fact that it had clear call quality. I took it back to the verizon corp. store and the rep started to mess with it to see why I was having problems with it. It did the screen jumping, opening the wrong application and then just froze completely all in the course of a couple minutes. He threw it on the counter and said that it was a peice! He said he wouldnt sell any if the customer begged him to.