The gopro is held in place on the Zenmuse by a small bracket and two hex screws. I reckon 30 seconds to remove/replace it. As for how good are the photos, I don't use it for that but forum member DTdyer does. I hope this link to his FB post works
https://www.facebook.com/photo.php?fbid ... =1&theater
That was taken by him with a gopro.
https://www.facebook.com/photo.php?fbid ... =1&theater
That was taken by him with a gopro.