Used the iBALL for the first time today. Used it first to hitch the TV and TT. I found it to be very easy once I got the hang of looking at the screen while backing the TV into place. Then, I put the camera on the back bumper of the TT when I was backing it into our storage space. That worked out very well also. Below is a picture of the screen shot I took with my cell phone of the view I had as I was backing into our space. The picture is fuzzy because it's a picture of a picture, and I didn't take the best shot with my camera. The view on the iBALL screen is pretty clear actually.
I think this gadget is going to work out well for us.
Don