Pros
Saved time and added so much to fused glass. Finished piece much faster.
Cons
Need more! Can become a habit not cutting glass myself.
Other Thoughts
Pros
easy to use
Cons
my first 3 firings produced a large hump, then a bubble in the middle. I remedied this by drilling a third hole in the middle. All is good now!
Other Thoughts
Needs modification to work properly.