I have get installed this brand in my brother's office 14 months back, all the cameras and dvr system is of the same brand and its working fine till now, it is a best security system we can use in our office or home. it has a good quality and good range to capture the footage.
it has a budget price as compare to other brands which are available in market, it is efficient and easy to manage or move the sight. I think it is more trusted brand in present time