Got the lens in.
Good build quality. Bought it with a stick on attachment that you glue on to your iPhone and then screw the lens. I screwed the lens in and fits tight. Haven't stuck the attachment on yet as I don't know if it will mess up the fit with the case I have the phone.
So far, I have just placed the lens over the camera and it takes good pics with an even deeper digital zoom.
Looking forward to trying it out on safari.