I can't believe there isn't anyone on here who knows something about these systems. I come here with all my questions - this is a really informative group.
I'm having a Mitsubshi system installed in my house this spring, the guy who does HVAC in my building recommend it,he had it put in his house and loves it.
They work pretty well for a smaller space; the fact that there is no duct work means the air reaches a smaller area, unless you get huge unit and run the fan full blast.