I purchased one of these many months ago on sale. Then purchased two more after seeing another "hot deal" on it. My girlfriend uses one at work. I use one at work, and one at home. All in all, these are amazing and gorgeous keyboards. I am very happy with the purchases.
That said, a couple things to note about each of the three keyboards:
1) Neither of us experiences the "phantom key blocking" that has been associated with this keyboard. Both of us type pretty fast (I just tested at typingtest.com and had a "gross speed" of 96wpm.
2) The problem is with the "shift" keys (on each of the keyboards). For some reason, the second letter of any capitalized word will frequently be capitalized. Both of us have to make a concerted effort to release the shift key before typing the second letter. I have never experienced that issue with any other keyboard in my life (probably 25 different keyboards that I've used consistently.) But, it happens very frequently with this keyboard.
I imagine that when I'm typing fast, I actually am typing the second letter of the word before I've completely and fully release the shift key. This keyboard does not allow you to slur those keypresses like that.
3) Some keys are creaky. It's tough to describe the sound, but it sounds like there is a delicate spring suspension under the keys, some of which are not lubricated enough -- thus the creaking of the suspension. The creaking is very slight, and you can only hear it if you are really trying to.
4) Other than these issues, (the shift issue being the most problematic), I still love the keyboard. As long as I make the effort to release the shift key, it works just fine. And, since I do most of my typing in Microsoft Word, it will be auto-corrected in most instances.