I just received this gimbal a few days ago and have made a few flights with it. I like it a lot. Truly plug and play, I skipped the usb drivers and Simple BGC GUI step and just saved the parameters described in the YouTube video into the Phantom software.
Edit. I went ahead and installed the USB driver for Mac so that the SimpleBGC 2.2 GUI app would work, or give me a USB port option to connect to for 6 axis calibration if or whenever needed, and to make the recommended Roll and Pitch changes under the PID controller heading.