I don't have an Edenpure, but I have a space heater that I'm really happy with so I thought I'd mention it. My boys' room is above the garage and insulated poorly so it is freezing during the winter. This year I bought a Delonghi from
Walmart for about $65. It's oil filled (You don't refill it or anything, the oil just heats up) and looks like a radiator. It has a timer, temperature control and low/med/high control, all digital. It will shut off if it tips over. It heats their room wonderfully and it's a pretty big room! We have used it every night this winter and I think in our case it lowers our electric bill because I don't have to turn the heat up to try to get that room to warm up at all, but I can't speak to how it would affect others.
The only negative I can see is that it is hot to the touch. The room I have it in is for a 10yo and 12yo and I just tell them when it's on so they don't play around in their, but my younger boys, 8yo and 5yo, also know to be careful around it. I just wouldn't have it anywhere with a baby or toddler. Oh, one more thing, it's kind of heavy so not something you would want to carry up/down stairs regularly.