Works as an additional camera, big issues during setup, might not be your experience.
Setup was a nightmare as it wouldn't connect to the camera no matter how many times I power cycled and put both devices into pairing mode.
The main unit has a reset button which has a factor default combination but just wouldn't trigger.
If I removed both cameras I could pair 1 but then not the other.
In the end even though the manual says to be connected to wifi, it worked when I turned off Wifi and tried again from scratch.
Since that headache has been over the camera has been okay - wish the delay was smaller.