A few months ago we purchased a Swann DVR8-4580G DVR as well as some extra cameras for it. And for the last 2 months or so its been nothing but a huge headache, It seems to have no smart image detection on board so any sort of movement(shadows etc) seemed to set it off, only two of the 8 cameras are allowed to stream video to the cloud, the extra cameras we bought with it have lights but they dont apparently work with our model of DVR, the final straw was earlier today when the box just continually crashed and reset it self many times over(even after a factory reset). I could go on but its already becoming abit of a rant at this point sorry 
This system is mainly intended for my parents house and they arent the best with technology so im going to set it up for them however my knowledge of CCTV systems is generally limited to this Swann one and a few cheap cameras that have been streamed through blue iris and tiny cam, so im hoping to get some recommendations about which systems I should look into. We live in a area where there are going to be lots of potential false alarms, trees, pets, a trainline.
Thanks for taking the time to read!

This system is mainly intended for my parents house and they arent the best with technology so im going to set it up for them however my knowledge of CCTV systems is generally limited to this Swann one and a few cheap cameras that have been streamed through blue iris and tiny cam, so im hoping to get some recommendations about which systems I should look into. We live in a area where there are going to be lots of potential false alarms, trees, pets, a trainline.
Thanks for taking the time to read!