This is my very first L lens and it's absolutely wonderful. I did find it to front focus just enough that I have to be very careful.. such as moving subjects away from the camera. That'll have to wait until I get a camera with AFMA.
By the way, anyone know how much it would cost to replace the front element? Bought mine used for a decent price. It has hair width scratches. Can't tell in images so no problem.
100D, 28mm f1.8, 10-22mm f3.5-4.5, 60mm f2.8, 40mm f2.8, 85mm f1.8, 300mm F4 L IS, 70-200mm F4 L IS, 50mm f1.8 STM, 18-55mm f3.5-5.6, 55-250mm f4-5.6, 430 EX II, kata 3n1 25pl and too much lighting equipment.