I've used a number of similar devices (not that exact brand) and honestly have given completely up on analog CCTV. For just slightly more (in your situation perhaps $75 or $100 more) you could go IP. It requires a bit more knowledge, but it's nothing you can't learn if you don't already know it.
The image quality, remote visibility, integration possibilities with other home automation equipment, and ability to place cameras in locations impossible with analog all come together to make IP somewhat of a no brainer. Only thing that used to keep people from it was cost, but a few companies have now brought some really nice IP cams down into the sub $100 price range.
I'd personally recommend a combination of Ubiquiti AirCam (~$100/ea) and BlueIris ($50 for unlimited cam license). You can get the AirCams as weatherproof bullets, indoor domes, or indoor minis. They only need a single cat5 cable run to each for both power and data, and plug right into your home router or network switch. The software is pretty low CPU usage on a half modern computer and, for starters until you want to do a dedicated box, can simply run in the background of any PC you have on all the time at home. I tend to just buy a $99 atom barebone computer on amazon or newegg, throw in an old hard drive, load up windows, and install blue iris. Makes a really affordable box that can interface with perhaps a dozen cameras before its CPU is bogged down. Bigger processors can handle much more. My Xeon quad core server is running BlueIris in a VM that only has two of the cores allocated to it. I run ~25 cameras on it and it really doesn't break a sweat.
Anyhow, in summary, the analog all in one kits are easy, but pretty low quality in both physical build and image quality. You can spend a little more money and invest some time in IP cameras and have a really solid system.