Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Will build your muscles . . .and try your patience . . .

THE GOOD: Strong battery. Good run-time. Nice charger/storage setup. Attractive design.THE BAD: Heavy, clunky, badly balanced, unwieldy. Trigger switch requires constant, very heavy pressure.THE UGLY: The line breaks . . .and breaks . . . and breaks! And-every two or three minutes--it breaks inside the spool, requiring a clumsy removal of the spool cover and re-installing the line. Then it breaks again.CUSTOMER SERVICE: Prompt, courteous, but completely unable to help-except to suggest "soaking the line overnight."THE FIX: The only way I could get the thing to work acceptably was to ignore Toro's instructions and to install a carefully wound .080 "professional quality" line. It doesn't make the machine any more elegant to use, but at least it works.If you buy this trimmer, good luck!