The most important aspect of lessons with a tutor as opposed to lessons from a text book, DVD, website article, etc. is that you can ask questions and approach problems from different angles. If there is something you don't quite understand, you can really pick my brain about it, and we'll find a way to manage any subject. This makes it far easier to get the information and answers you are looking for more efficiently, and will therefore speed up your development as a guitar player.