I was a little skeptical to buy the camera since I work on houses with old cast iron piping, but to my surprise the camera worked great. The color picture is very good and was easy to maneuver through the 4" piping. I did only go down the line about 70 feet, I could not negotiate the last bend before the sewer exited the house. I recommend for a first time camera.I tried on a PVC system and it was extremely easy to feed down the 3" pipe. It was a large house and went down that system about 100 feet before the head would not move anymore. The system is very compact and lightweight but powerful.