Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Black& Decker model DS321 Sander

I purchased this sander because I liked the features of the product. The sander has a very low profile that allows the user to get close the edge of a floor or another area where there is a right angle. However, during my first use I was disapointed to find that the lever that compresses the tension spring for the belt failed. I had to return the sander to a service center for repair the first day it was in use. It seems to me that the lever is made of poor quality material. Hopefully, the replacement will be made better. I think the design is great for a homeowner's basic needs.