Cheap for a reason - buggy software, non-existent support
I had several Hikvision IR dome cameras and a doorbell. Would never buy from them again. Although the basic technology is quite impressive, the cams were useless due to horribly buggy software and non-existing support. Even something as simple as a firmware update could turn into a nightmare. My doorbell "disappeared" from the Hikvision site. Their business model is to bait new clients with fancy tech specs and to constantly bring new models while failing to support the previous models. In short: Hikvision is for geeky tinkerers who like to spend a lot of time learning the bugs of their camera software and who are ready to "upgrade" their cameras every year.