Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Mediocre keyboard replacement

My previous Mac compatible keyboards died after extensive use. I looked for a new keyboard which was Ergonomic and Mac Compatible. I found the Microsoft Natural Keyboard Elite. It looked OK, and was inexpensive (roughly $30). I ordered it and it arrived almost immediately. It is a poor keyboard. The action of the keys are stiff, and what is worse: noisy. I used it for a couple of hours, and gave up. There are much better keyboards which satisfied all of my requirements (ease of use, ergonomic, Mac compatible, quite, etc). They are more expensive (roughly $140), but in my personal opinion, worth the additional expense.Microsoft Natural Keyboard Elite