Been looking at this for a bit and I have myself talked into getting the full STI-R+ with quad ALP on my Audi S6. Wanted to confirm my thinking before pulling the trigger.
If I have things right here are the advantages of the two approaches:

Full STI-R+ :
Pro's:
Blocks false alarms with GPS
Works even if the iPhone got left behind
Con's:
Much more expensive
Two systems to manage while driving

STI-R+ Antenna integration with ALP (basically the reverse of the first option)
Pro's
One integrated system displaying on the iPhone
Less dollars
Con's
Will lite up radar every time you go by that garage :-)
No iPhone no system.

For me living in a city with a mostly surburban commute, the GPS seems really important as working without the iphone.

Reasonable conclusion? Anyone else have this set up with any lessons learned?

J