I have very few disappointments with the 6D. I bought it with my eyes open. Sure, I would like the AF to be more robust, but it works fine for me and that isn't going to change. What can change and should change is the firmware around the GPS. Right now for me it means manually turning it on and off...or leaving it on to put a continual drain on the battery. Make a firmware change that allows for more options, specifically to either turn on or off with the camera, or, even better, to shut down at various optional times after the camera is powered down (5-10 minutes, for example).