Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Hop, Skip and Jump

I was disappointed with the performance of the sander. It was difficult to control -- it usually hopped, skipped and jumped across the piece I was trying to sand unless I only used the edge of the disk. The sanding action was not as aggressive as I had hoped. I have pretty much reverted back to using my belt sander for rough sanding and my Dewalt ROS for the finish work. I also found the unit uncomfortable to hold. The vacuum hose seemed to be in the way. I actually wind up holding the vacuum hose and the screw-on handle while operating.