This inspection camera was ordered to inspect a sealing sheet in a house with timber frame construction as a homeowner accompanying a renovation. The image looks sharp on the display and the camera has a sufficient refresh rate for orientation. Noise is tolerable in low light, but almost imperceptible in full light. The side camera is only sharp in the close-up range, but it is still very helpful for roughly exploring cavities, because you can dive into a borehole and get an all-round view without having to turn the camera head around the corner. The line can be easily modeled and remains easily routed over a distance of approx. 1 meter. This has proved beneficial in getting the camera free again, if you want to look behind an edge at some distance with a bent end. The long line is also helpful to form a kind of crank outside the hole in order to be able to guide the camera better.
I can't see any reduction in image quality in the photos after I've scaled them down to 50% as a test. I therefore suspect that the usable resolution is well below the specified 1080P. I haven't tried the accessories like the magnet, but the protective ring for the accessory thread sometimes gets in the way when pulling the camera back. A clear purchase recommendation for occasional use.