I ordered both the Phantom Skinz and the Zagg screen protectors.
The Phantom showed up first but didn't have any solution for it (you make it with soap water). I kept putting it off since I wanted to play with the device not let it sit there drying.
The Zagg showed up the two days later and came with a small thing of solution. I decided to do that one first and if I didn't like it switch to the other.
Installation was pretty smooth though I did re-raise the skin from the phone after the first application as it was a bit crooked. The ability to slide it didn't seem to be there despite having plenty of the solution on it, the phone and my fingers.
It was very tacky feeling when I got done, kind of rubbery but it was after midnight so I put the battery in it, and charged it overnight (you are supposed to wait for it to dry first). In the morning it was a bit slicker.
Over the past week, it has gotten more and more slick and is basically clear. If you look at it close, you can see kind of an orange peel like look, but you really have to look at it. Using your nail, it still has somewhat of a rubbery feeling.
Using it has still has some resistance to it, but I have learned that you really don't have to punch the screen like my previous Omnia where you actually had to press into the screen.
Using something like Swype takes a bit of playing with as you don't want to press onto the screen or the resistance will make it hard to use it. Very light pressing works great though.
For me, the phone was very touchy when I got it compared to my Omnia. With the Omnia it was seldom that I touched something that caused the phone to take off and do something where the DI can do that in many places. It is very sensitive. The Zagg does not appear to have changed that.
Not sure if I will use the Phantom. I think it was a whopping $7-$8... perhaps someone at work will end up using it. I didn't not order the matte finish one though.
If I was starting out new all over, I would most likely use the Zagg again not a good comparison to the Phantom since I've not actually used it though.