I needed background on choosing a hot water heater system in a uniques situation, and the expert talked me though all the scenarios to help me make an important and costly decision. He did this with informed, professional and unbiased knowledge about what my options were and what might work best, offering his own personal experience and recommendations upon my asking. This was after he had educated to me to a fairly sophisticated level on all the factors. I greatly appreciated it and will definitely use them again. So impressed.