I've been using an S1 for about a year now and I love it - worth every penny. Last 2 software updates were quick and easy to install, and useful! It does a ton more than "move the display to the radio - read the docs on their website and look carefully at the features and think about how they might be useful - I think you'll see the value. Heck, I'd seriously think about paying full price just to have it automatically confirm the accept screen on the nav - which it does! **No affiliation w/S1 - just a great idea and a great product - I think it's inexpensive for what it does.