I used one for years. My 3+ year old beat SP still fades at the end. It is outstanding for going for long putts without doing a 40 foot blow by. The Premier plastic is a lot more durable IMO than Zero Line. Premier is more tacky too. Feels like a soft X without the flexibility. My AP I use a lot less, I feel the magic is in the Premier SP Plastic. With all the beatings it's taken, it looks better than any beat Magnet, Aviar, or Wizard I have ever seen. Stocked up on a bunch incase it got flippy and have never needed them. The beat one still serves its purpose.
As for the pads on the top, They have three different textures (or at least they did). I always used the least tackiest one for putting. However, when it's wet I do like the pads. They do provide a little advantage. As it wears down they pads become less and less noticeable. One of mine is basically nonexistant now.