My Canon 6D has built-in Wi-Fi but I only use it for remote shooting. I can set it on a tri-pod and aim the camera at a bird feeder, for example, then view want the camera sees and take pictures using my iPad (which sitting in my house). I've not used it for printing or transferring pictures and probably would not. I like to just load imaged from a card reader, then usually do some post-processing with Lightroom.
