Inferior qaulity

Good day I would just like to share my experience which I had with the Michelin Tyre brand, I own a 2011 Chev Spark wich I have owned now for the past 7 months, I recently had to jave my vehicles tyres replaced when I decided to opt for a set of Michelin tyres as I did not want to settle for an unknown brand as my wife drives the vehicle on a daily basis after about using the tyres for 2 months i was driving home one evening with my wife and i felt a slight vibration from the front of the vehicle, me working in the motor industry myself thought to have wheel alignment and balancing done again and to my surprise the fitment centre pointet out to me that 3 of my tyres had an isue where the tread patern was busy seperating from the walls of the tyre, I was shocked as I thought that Michelin was one of the top brands and I have only used about 35 percent of the tyre tread I wish I never bought these tyres and that I should have waited and did my homework before I decided to go for the Michelin brand but I geuss no I know.