I have these tires on my 2011 Toyota Prius, with195/65/15--91T NOT 89S. I work in the Automotive industry as a tech. I also drive more than the average Joe, and that is the reason why i bought these tires rated to last 90,000 miles, not by some schmuck, but rather by a governing body of scientes. I have over 40,000 miles on these tires and i still have quite a bit of meat (tread) left of my tires. i have recomended these tires to many people who have small cars, like civic, accord, corolla, camry, sentra, altima, and similar small sized cars.
I got these tires with the new car, never had any issues till I had 65k miles on them. after 65k miles, I noticed that the tires squealed a bit on the 25 MPH highway ramps. Other than than never had any issues, not even a single flat tire during the 70k miles, just got them replaced with another set of the same tires. I am planning to get the same tires on my 2011 CRV.