Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Works great so far...

This product is working as advertised since I bought it a month ago, keeping my classic car batteries charged. How long any electronic device lasts is the true test though. I just bought a pair the long extension leads for this device though because for the included leads to reach both cars (in the same 2 car garage), the tender has to sit on the floor between them. Once I get the extension, I should be able to place the tender on the shelfo or attach to wall and have plenty of cord length no not be a trip hazard.