I had a great experience with David. Prior to taking his lessons, I already had some experience studying php. My intention was to build a solid understanding. He met all my expectations and he is very flexible. His php lessons are easy to understand and he goes slowly for you. Even if you don't have any php background, this will build your basics. He also teaches you the coding habit. He gives a challenging homework after each session. If you are able to follow his lessons, he will give you an introduction to oop in the very end. He is always willing to help and I definitely had a great experience.