They are okay - I'd say fair to middlin' - not great. I just had one of my cameras fail; most likely due to very low temperature. That is the second failure I have had that is (probably) from a camera failure. The third failure I had was due to my faulty wiring installation. So, that is about a 50% failure rate after 2-3 years of use.
My point is, the expensive unit you linked to looks like a plastic case around the same $25 camera. They are charging a lot more for the same camera.
I have looked a long time to find something different (that may or may not be better), and this is it:
2 LED Waterproof Car Rear View Reverse Camera for Monitor DVR E400 Camcorder NEW - Newegg.com
I want 130 degree view
or less. Too wide an angle only shrinks the image, and it gets lots of barrel distortion.
I do not want "parking lines". These only distract from the image.
I want infrared operation, which helps a bit at night.
I need the camera to be able to deal with direct sunlight and headlights.
I need cold weather operation. At least -20C but preferably -30C.