I wasn't going to buy my Z without one. I knew I wanted a touring sport and wasn't going to put a handheld in the car and had no interest in installing an aftermarket system. It is a very nice looking unit, well integrated and performs very well. If you want nav and you can afford it I would highly recommend it. Its definitely not cheap but I think it is well worth it. Hope this helps.
Greg
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Greg
2013 Camaro ZL1
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