My husband and I experienced a drain issue three weeks into owning our first home and the home warranty company sent Robert with RS plumbing out. He discovered a large problem that had gone overlooked by the home inspector (and according to our neighbor, by previous plumbers).
He and his team were able to fix the problem the very next day and, while the cost was definitely a blow, he was incredibly fair and reasonable with his pricing considering the amount of work required.
Robert is knowledgable and fair, exactly what you want in a plumber.