Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Designed well but problems with electrical

I love the Bosch line of tools, I need a very dependable detail sander and I am still hoping that Bosch will be the sander, I have bought three detail sanders from Bosch, two of which have failed after just a few hours of which each I smell electrical odor before they fail, I will take this last one back and get another one shipped, but there is deffinately a flaw with the electrical, probably the brushes, I was hoping others may have had the same problem??? Again I love the design but there is an electrical problem where they simply stop and just after a few hours of use, I believe in Bosch and will try again, Home Depot here we come!Respectfully Dwight