Wondering if anyone has this stereo? Wondering how well it works with iPhone.

I am considering this because my needs are:

iPhone compatibility- want to be able to control from either head unit or iphone itself

Preamp out- sub hookup

Price- this'll be in my jeep, so there's a high likelyhood of it getting stolen.

This one appears to fit my needs and my budget, just looking for feedback. I played with it at the store, and i figured out how to make it control from my phone, but could not figure out how to make the head unit take control.