As for my Toyota Central karachi, has no issues with it, warranty and all other options are good to go, even the tyre change was done by a reference from 3S Toyota Central, they said as long as the size is same as company specs no issues.
With 215/65/15 my car offered me for more then my expectations, Karachi to Lahore, later to interior Sindh full kacha area, currently the car is to Northern area murree and other touring places, I would not trust any other then Michelin's for these rocky and muddy locations.
Yes I am loosing 1km or 1.5km / litre for fuel ave, but I am saving my car suspensions from the bumpy roads, and full control on highways even in wet conditions
Corolla 2015 by Kamran Aslam, on Flickr