I am having some trouble deciding on a pellet stove to get. All the reviews have some good and bad. I have it narrowed down to Harman accentra insert, quad mt vernon e2 insert, and enviro m55 insert. I have dealers close by with some pretty good reputations. Which one would you guys go with? If someone has anyother models that I should be looking at please let me know. Which is most reliable, cheapest to fix ect...