Pros : Sturdy, handy, project saver. Saves so much time going back and forth to the glass stacks or laying the glass down in a dangerous pile.
Cons : The wire prongs can come loose so I keep a glue stick with me during assembly and dip each end into the stick before attaching the tip and into the base.
Other Thoughts : The above technique is easy, cheap and reliable. I think I have 10 of these in my workshop because plan out several projects at a time. This gives me a quick way to identify which glass goes with each project.