I have the Arlo Pro units at home, about 5 of them. Image quality is quite good and they're completely wireless, so they're really quick and easy to install. They also come with free cloud storage that will retain up to 1 week of recordings.
The main downside with the Arlo Pro units is that, unless you provide permanent power, you'll need to charge/change the battery every 1-6 months (depending on usage). Also, while you can stream live images from the camera, you cannot do so continuously (like you might with a conventional CCTV monitoring system). Motion detection is a bit basic too, in that there is no way to define a custom detection area/shape. You can shrink and move a rectangular selection area within the field of view, but that also reduces/zooms the recording/viewing area.