I prefer Axis and Arecont high end, though I have dabbled with Mobotix, we installed a QM24 360 camera for one of our customers which was good, but a ball ache to make it work with our NVR/DVR. Lower end its Hikvision (which is fast becoming a top brand) Dauhua I use quite a few Dynacolor/Optiva cameras nowadays. Indigo vision is a strange company closed protocol, they seem to rather lose work than sell to non authorised partners even when the customer is unhappy with the authorised partner, which in this day and age is almost suicidal for businesses in such a competitive market. Dont get me wrong I believe that the USP is not to be the cheapest, but it should not be do it our way or not at all at any cost.