Why do you want to learn guitar? Wanna find a creative outlet? Do you want your child to continue their path of learning? Do you want to write songs, be a rock star? Or maybe you just wanna be able to sing a few songs 'around the campfire' with mates.
Whatever the reason you want to do it FAST. You want to learn quickly, effectively and efficiently. The teacher you choose should be experienced and aware, able to easily identify your unique technique and way of thinking to give you the tools you need.
I honestly believe I am the best guitar teacher you are going to find. I know, big call, right? Well it takes passion and dedication in something you love to be able to say something like that without fear. If you don't want to pay for a really good teacher, use youtube, it's FULL of videos that people have made from all over the world! ;)