I wasn't a fan at first, but my wife has an Audi A4 and I came around. It actually has a spot in the dash to insert the key and you can just push the key forward in the hole and the car starts. I started by doing that, then eventually I put the key in the hole and hit the regular start button until finally I just get in and hit the button to go. Her car is so much nicer than my crummy tC.

When we got the car the salesman took the time to explain how to change the batteries and how to use the physical key should the FOB stop working. So in closing, they are super neat but I don't mind turning a key in my crummy car.