AU Factory Alarm Upgrades?

[fourl6]

hey all just found these "Factory Alarm Upgrade" (CAN BUS Certified - Certified for installation into Ford Falcon motor vehicles manufactured from 2000 onwards.)
http://www.ryda.com.au/ProductDetail...Show=TechSpecs
i think the price is ok but not sure of what exactly it "Upgrades"? by the sound of it you still use the same remote and the factory immobilizer but adds a half decent alarm and shock sensors... is anyone using this or enquired about it? of have another kit that could be useful...? this is a list of features....

# Electronic Emergency Key
# Windshield Mounted Warning Led
# Flashing indicators
# Battery backup siren
# Ultrasonic sensors
# Diagnostic flashing LED
# Remote central door locking*
# Remote window closure**
# Vibration and water resistant system
# Voltage drop sensor (can be excluded)
# Electronic Emergency override code (can be customised)
# Boot, bonnet and door protection
# Programmable functions via remote control
# Ignition hotwire protection
# Safety lock (Optional extra)
# Anti hijack (Optional extra)

i just like the fact that it uses smartshield and doesnt need to be bypassed etc....

*Applies to vehicles fitted with Central Door Locking
**Applies to vehicles fitted with comfort closure on power windows