I have now been playing guitar for a year and am at a level of both playing and understanding that far exceeds any expectations that I had.
I was given a guitar by my wife that she had as a teenager and rediscovered in a cupboard in her parents house. For the first few months I was able to learn basic chords and a few songs to play along to using YouTube. However the enthusiasm that I started with quickly dried up as the learning was superficial. To remedy this I started casual half hour lessons with another teacher, this was both expensive and rushed and still did not give me the understanding I was looking for.
I started with Tom back in the winter 2015 and haven't looked back. Tom is enthusiastic, understanding and patient, aligning my lessons to the direction I want to take my music. He is teaching ME to play, rather than just teaching guitar. I would recommend his teaching to anyone who wants to learn and is keen to develop.