Received the system on 3rd November. Attempted and failed to get system up and running on the 6th and 7th Nov. Now it is 17th Dec and I have become very well acquainted with Phil and Leslie at customer support. They are two of the best, most polite and positive customer support people ever. The email conversational process is however inherently long and drawn out, so I can’t help feeling that instant chat or (god forbid) a telephone conversation would be far quicker for the customer during fault finding. With their help, we now have a minimal system working and have been using it in anger for the first time over the past five days. Our minimal system comprises the hub, two door sensors and two PIR sensors. From the six PIR sensors we purchased, we have two PIR sensors to be returned, and two PIR sensors still to be added to the system. The siren is also still to be added to the system. We will try those over the Christmas holidays. So our original 3 star review is getting better but is not yet at 4 stars, which is where it will be when we get the other sensors plus the siren working as part of the system.