7 dahua cameras been running for over 2 years now, with matching Dahua NVR.. does everything I demand of it, which is alot.
2 years ago when I bought mine, I was about to buy Hikvision, I had worked with several Hik systems and was extremely impressed.. then I learned of there region locking nonsence and found Dahua, they did not have all the same form factors that Hikvision did at the time, like mini-wedge, cube, turret.. but I knew I wanted a couple PTZ's and everyone here agreed that Dahua set the bar on PTZ cameras, while Hik still had the advantage of having a wider range of Fixed Cameras.
Fast forward, and currently Dahua has a fixed camera answer to everything on Hik's lineup.. the advantage Hik once had over Dahua has evaporated and I think Dahua is clearly the all-arround champ, at the moment.