Well my RETAIL STI R Plus came in on 3/19/11 and it is scheduled to be professionally installed on 3/22/11. I must say after having the unit for a matter of hours, I am BLOWN away. Its performance is amazing! The STI R Plus is the Lamborghini of radar detectors while the original STI R was the Ferrari of radar detectors. If I had to use an analogy for the 9500CI then that is the Fiero of radar detectors. What is comes down to is that the STI R Plus is what the 9500CI SHOULD have been. Why Belscort has not advertised this gem is beyond me. This radar detector has all of the advanced features that we have been begging for, perfect audio ramp up, Ka band segmentation, and RDR off/on option. The STI R Plus is the BEST radar detector EVER made, PERIOD! How can I make that conclusion? Well because the STI R was the best so this must be even better. In fact look at my picture carefully, see the diamond crown?