Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Great!!! ....at first

At first it started to work great and I could see clearly on the screen but after a month or two, the screen started getting darker and darker and now I can't see anything on it. I still use it because the sound that comes through is ok and I can hear when people pull in the driveway... but it's not too convenient since leaves rustling in the wind sounds like a car pulling into the rocky driveway.Save your money and buy something that will work more than a few months.