Such a great little gadget. Being a girl with limited knowledge of cars, and having a jeep (there's always something), it's nice being able to check what the issue is when the check engine light pops up. Also gives you an upper hand at the garage, so that they don't try and make up other issues to spend more $$$. Nice and small, easy to read the code (if you don't understand a code, you can always google the upper left number and it will explain to you what the issue is in more details), and very easy to connect to the car.