Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good for 2 years max.

I have now owned two of these units. When the first failed I purchased a second on the assumption that I must have had a weak one that glitched and that it would be easier to hook up the same unit. Like clock-work, or rather poorly made Chinese clock-work, the second unit has failed after only 1 1/2 years. We live in Maryland, a moderate climate with a medium size antenna on a short mast. The unit was not heavily used nor heavily stressed. After two failures in less than 4 years, I am convinced the Channel Master is not the brand it used to be and is now just another example of cheap Chinese junk packaged under a once venerable American brand name. Sad.Jay S.