I recently added on to my house two bedrooms and a bathroom. I needed another hot water supply and looked into these point-of-use hot water systems. Way to expensive to fit into my construction budget considering the energy/cost saving over the long haul. I opted for another tank. My boss built a new house at about the same time and opted for the point-of-use system. He had more money in his construction budget than I did. So far he is satisfied.