To calculate the overall star rating and percentage breakdown by star, we do not use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
The product is good. It comes with a lot of difference length attachment. Cutting is good. Bought it in Feb, use it less then 10 times, today (June) the button was faulty. I cannot switch the button off, it just keep running non stop. The problem is now I do not know how to get it repaired. I'm sure it's still under warranty.