Instruct: Classify Amazon reviews into positive or negative sentiment
Query: 5412L is Geometrically Challenged

The tool salesman at my favorite hardware store showed me how the Bosch 5412L slide mechanism is geometrically out of alignment. At zero degrees miter, slide the saw forward and align a square between the back fence and the left side of the saw blade. Next slide the saw to the back. Notice the quarter inch gap between the left side of the saw blade and the square. For any sliding compound miter saw over $500.00 I would expect no gap. How can Bosch sell such junk and expect the Bosch name to be respected?