I have had a complete hedge trimmer replacement, then 2 new cutter bar heads and it still makes a dreadful grating noise after a few minutes operation. That is not my main complaint which is I that also have had a CLM 021 Cordless mower which being only 11 months out of warranty I am told needs a new battery at a cost of £159 when the mower was over £500 less than 3 years ago. Not good enough and as a retired engineer I will endeavour to spread the news about my experience of GTech inferior design and engineering quality of these products. You are expected to spend a lot of money on products which aren't designed to last. Lets go back to Suffolk Colts that lasted for decades.