I called the Landscape Lighting Guru to replace a bulb in a spotlight attached to a tree, which I could not access. And, it was causing a walkway safety hazard. Darryl Cook came that same day to evaluate the situation, identifying an instillation problem. The following day John came to make the repair. John was very professional, and quick to explain exactly what he was doing. He was very careful to ensure the lighting angle was correct, and to my wife’s satisfaction. I would definitely recommend the Landscape Lighting Guru, and I give John a 5-Star rating.