Pros : after almost 10 years of working with glass, this tool is one of my favorites. Fused panels that didn't sell last year can be cut into strips with this tool, and reassembled into other projects. Have managed to score and cut blanks 3 layers of glass thick. The breaker is phenomenal. It can be adjusted easily by loosening or tightening the little screws. Have had lots of fun with this.
Cons : There is a limit as to how narrow a strip can be cut. The breaker has to be able to fit on both sides of the score. For really thin cuts, the better tool would be a tile cutter, but for people who don't want to bother with a tile cutter, or don't need very narrow strips, this works very well. One slight problem is the little rubber plate unglued after a day of use. It was easily glued back on with E6000.
Other Thoughts : Wish I had gotten this years ago.
Pros : I made a few casted "tiles" with the intention of cutting them into smaller squares. I couldn't cut them into squares with my standard tools - so I asked my husband to help. He couldn't get them to break either. The Power Breaker broke them with such little pressure that it almost startled me. Well worth the money!!
Cons : It's a little expensive, but in my opinion, it worth it.