The ADT Quick connect system is easy to use and if fully monitored by ADT. The monitoring service will contact up to 3 keyholders if the quick connect system is set off. The quality of the components is very good and the installation was done by qualified ADT engineers. The installers talked us through using the system via the wireless keypad. The keypad has an LCD display so you know the state of the alarm at anyone time. I order my system online through a supplier offering free Argos vouchers so this made it an easy choice rather than ordering direct with ADT. Very pleased with the ADT quick connect and the service ADT supplied.