Very nice guys. They do their job and everything works great when they leave.
Cleanmyfurnace.com has been coming here for a while. They first installed a new furnace for me two years ago. They told me that I would want to get it cleaned once a year, so I call them and have them do it before winter each year. They just show up and do their thing and leave a slip so I know when they came last. I have no complaints at all.