AprilAire 560 is a very good unit.
Do Not Listen to the advice about the fabric softner....very poor idea.
Have a knowledgeable Pro install the unit. Make sure you install at least an icemaker filter in the water line before the filter. The minerals in the water can clog the metering orifice.
The humidistat can be installed in the living space or in the return air ducts. I prefer the return air duct, that way you don't have an additional gadget hanging on the wall.
You will need to change the water panel in the filter once a year. Do not try to clean the water panel it must be changed. It is coated with specific minerals to keep the water bacteria free.
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