I've got one. Mine gives a good picture. However, I've found that when you put it in to an enclosed space such as through an air brick under the floor, chassis rail, wall cavity etc, it's hard to tell which way is up and what you are looking at. I've marked the top of my camera so I know what is the top! But, once it's inside the chassis rail it will rotate and it starts getting confusing. I haven't used it that much so probably with experience/self training I would get better at interpreting what I was looking at.