Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Wish I had read the rest of the reviews first - its useless

Like others I thought it would be good because I wouldnt have to worry about turning it off and on- it would just turn off when I turn off my computer at work each day. I use dishwater hotter than this thing gets. I literally can put my hand on it without getting burned. I hate that I have to give this even one star. I plan to look for another. I hope there is a different brand of USB warmer out there that gets hot.