Well we bit the bullet and bought a M-55 stove. It replaced a Quadrafire propane stand alone stove situated in our downstairs family room. We were using about 75-100 gal of propane in the coldest months here in Montana (we also have a propane gas fired fireplace upstairs and a propane shop heater in our 3 car garage).. I've never owned a pellet stove before. Prior to moving to MT we lived in West Virginia and used a Dutchwest Catalytic extra large wood stove for our heating needs, usually burning 4-5 cords of hardwoods p/yr. Our house in MT has no chimney, and the basement has no door access to the outside so pellets seemed to fit the bill nicely, and should be more than half the cost of using propane. I did a lot of research and narrowed down the stove choices to a EF3 or the M55. I liked the EF3, but the wife preferred the M55 for styling, so there it is It's only been running for 24 hours, but it is doing a good job thusfar. Loaded it with some premium pellets on the maiden fire and set it on high/low mode with a remote thermostat. 1,200 finished square feet in the basement, another 1,400 upstairs. Temps last night were in the upper 20's and the house stayed warm enough, no propane kicked on last night. Obviously back bedrooms down hallways are cooler, but thats how we like it. Forecast for the next week is single digits, minus 0 at night so we'll see how it does. Gonna try some Home Depot fuel next. I'll keep updates on the performance, possibly post up a pic in a while.