Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Cheaply built, bad service.

I have used my Grass Hog only about 10 times and already the plastic handle is broken and the unit needs to be repaired.I was having problems with the string not advancing (not uncommon) so I unplugged the unit and flipped it over to remove and inspect the spool. After inspecting the spool I set the unit upright, grasped the lower handle, and while pushing the extension cord back in the plastic handle snapped.It is difficult to order replacement parts and when I contacted Black and Decker's customer service with my complaints they gave me a one-line response with the toll number for a "local" authorized service center.My overall experience with this unit has not been very positive.