Burning pellets was a new experience for me last year. One of the biggest things I underestermated was the quality of the pellets reallly does matter. I burned Athens and Hammer's and boy what a difference (I don't want to bash Athens anymore - we all know they were far from the best last year). I don't know if I'll ever buy a ton of pellets before I burn a couple of bags 1st. Secondly, I underestimated the heat these stoves put out. I have mine in a ranch style home and I can easily get the temp up to 80 degrees. What impressed me was how quickly it warmed the home and how the heat seemed to really hang around (once the house was truly warm). We lost power a few times last year and I could warm the home much quicker than my furnace could dream of doing (using a lot less power from the generator). I like having oil for when I'm not around and to keep the house from getting tooooo cold in the winter time. Lastly, I used the thermostat last year and went through an igniter in four months. Frost and Flame replaced it under warranty, but I think I'll use the manual mode more this year. I really like having the option of playing the price of pellets against the price of oil. I locked in at 1.89 this year, but who knows what tomorrow will bring. Atleast now I have options. What are the biggest lessons you have learned.