These mounts live up to all they say they do. Sametop sent me a package to put through the wringer and I've been pretty happy with them.

The adhesive is genuine 3M so I'm not worried about them falling off. Do be sure to thoroughly clean your mounting surface before applying them. I usually use warm, soapy water and then dry it completely before taking another pass with rubbing alcohol. Every mount I've ever installed this way is still very securely attached, even the one on the back of my BMW F800GS adventure motorcycle. It's seen many drops without the camera so much as budging.

All GoPro attachments fit to these mounts in the normal way though they're a bit tighter in my experience than the mounts GoPro normally makes. I have one mount from GoPro that fits tight light these but the rest slide in easier. I don't think that's a negative since I like to know my cameras are secure. It just makes it a bit more difficult to attach and remove a camera from the mount.