Instruct: Classify Amazon reviews into positive or negative sentiment
Query: terrible dado set

I have owned this dado set for 8 or 9 years. It has never cut very well, leaving rough bottoms with a lot of chip out. It got to the point that I used my router or router table for most dado operations, avoiding the Freud dado set altogether. I have owned other Freud blades for my table, miter, and skil saw. These blades have done a good job at a reasonable price, but this dado set has been very disappointing. I would not buy recommend it.