I have owned the camera for over a year and it has had faultless and exceptional performance. If you are interested in a colour CCD you would probably need one without the filter wheel. I have not had any trouble reaching -20°C when I am outside. It needs some airflow to achieve it on the very warmest nights. My experience is the noise at -15°C and -20°C are not significantly different but as you are reaching for the faintest possible signal anything you can do to improve it should be used. As I can reach -20°C all year round it means I have a reduced number of darks by standardising on one temperature. In the coldest weather I could get down to -30°C but would need more darks. The electronics in this camera add very little noise and are designed to extract as much signal as possible. Would I buy the same camera again? Yes, Yes, Yes.
