I have had mine for two years, and probably use it about 80 times a year. It is the best mirror I have found for visibility, however water can penetrate between the layers of the mirror and where that happens, the reflective properties are gone and replaced by a blue colour - dissapointing for a product that is used in a wet environment. Also the velcro has worn out already. I am not sure if it is the highest quality velcro, as I would expect it to last longer.
So, good for visibility, but at the price, not as durable as I would expect.