Just had this installed and gave it a week for a review. The user interface on this unit has improved over the W505 that I had. The buttons at the bottom are also easier to access for those w/ fat fingers. The buttons protrude out a tad but not enough to interefere with anything. I took a side profile pic to demonstrate this. Also, the navigation is easy to use and is now standard with the W900 and not optional as it was in the W505. The amber/deep red color options match nicely with the OEM lighting in the NSX too. It's blue tooth ready and of course iPod friendly. Overall, I am very pleased with the unit and its improvements. Jeff