Instruct: Classify Amazon reviews into positive or negative sentiment
Query: don't waste your money

They clean the screen, so to speak, but also leave a slight film behind which can be seen when the monitor is off. It doesn't really affect viewing while the monitor is actually on, but I still don't like the fact that the screen is not completely clean after treatment. The monitor would have been cleaner overall had I just wiped it with a dry lint free cloth.Perhaps some people would view this film as a relatively minor flaw, since it doesn't affect picture during use, but regardless, I am extremely disappointed to pay money for a product specifically marketed as a screen cleaner with results anything other than excellent. I thought these would be a solution but they've turned out to be just another problem I have to figure out.