Recent Review: They were great. The owner, David, also took the time to explain how the system worked, how to clean the filters, etc. We moved the kitchen to a larger room that housed the thermostat as part of a separate remodel. He took the initiative to suggest we move the thermostat out of the new kitchen area and into the living room-- more work for them, but very nice for us! Their quote was about the same or lower than 3 other providers' quotes. It seems like a very principled company.