There's a reason to why these picks are so popular with all types of guitar players, whether they play jazz, death metal or anything in between.
Pros:
-the shape makes them comfortable to hold and the sharp tip allows you to really dig into the strings.
-the writing and the material on the picks gives a nice grip to hold.
-they seem very durable, I've been playing with the Ultex XL for a couple of months, and the pick is still as good as new.
Cons:
the normal sized ones are very small, too small for me to play with comfortably. The XL ones are about the size of a standard pick.