I have had Hi-Q brake pads installed for more than two years. During that time, I logged in excess of 30,000 kilometers, yet the pads have not yet worn out. When I first purchased it, I had concerns that it would turn out to be a fake, but nothing of the sort transpired. Ordered online for delivery. The cost of spare components is reasonable, and they have a high coefficient of friction, making them stand out. We never even so much as heard a squeak or a buzz. Because I travel so frequently and so far, I will need to purchase these before my next MOT, which will presumably take place in a couple of months. Concerning the drawbacks, I believe that they are too soft, as a result of which a great deal of dust is produced. On the other hand, the brake disc wears out less, which is a really positive development.