How well do the Eden Pure infrared heaters work?

Mostly, I'm interested in how warm they are, how safe they are, and how much they tend to lower your heating bill. I want to know if they are worth the investment.

I am only interested in the Eden Pure brand. I am not interested in the knock-off brands you usually see in retail stores, or the Amish heaters. I already know these are all junk and not worth buying. I have heard nothing good about these rip-off heaters, but I have heard several people who have owned Eden Pures say good things about them, and my (limited) understanding as to how they work makes sense to me, and seems to explain why the knock-offs don't work as well. So now I'm just interested in hearing more peoples' experiences.

And if you answer, please include the following info:

Do you actually own (or have you actually owned) an Eden Pure?

What other heating systems does your home use? (Gas furnace, heat pump, ect;)

What kind of climate do you live in (naming a state, province, country, or region will do), and how cold do your winters get?

Is your home well insulated?

What was your heating bill without and with the Eden Pure?

Any additional relevant information would be great too. Links and references are welcome. And if you have any technical information, statistics (with reference to the source), etc; it would be great. Thanks for any info in advance, and God bless!