Very good. I've got the same coopers - done nearly 40k on them and still plenty of tread. Perfectly happy with them.
Current : 2015 Overland CRD Brilliant Black, Cooper AT3 on 2012 Laredo rims, full size alloy spare.
Past and now sold : 2012 Mineral Grey CRD Laredo, Off Road Adventure II, Quadra Drive II, Quadra Lift, Only driven to church on Sundays