Given the task definition and input, reply with output. Given an Amazon review, indicate whether it is a 'Positive Review' or 'Negative Review'.

After about 3 months of home use, this keyboard went totally wonky on me. Certain keys became nonfunctional and the majority of the rest of the keys typed a letter or symbol other than what it was supposed to be. Extremely irritating and, of course, rendering it completely useless. Went back to my old standby, the Microsoft Natural Keyboard Elite.
Negative Review