OP: Good choice: I bought a 55TRPAH last year from AM/FM also. My first year with a pellet stove as a replacement for a FHW oil burner. Amazingly it easily heated my whole house (ranch style, mostly open concept) really well even when temps fell below 0 with no help at all from the oil furnace. I kept the house over 5 degrees warmer then the previous year and still save enough to cover the cost of the stove and pellets! My test year over, this summer I ripped out my furnace, 275 tank and gained a bunch of space in my basement
The stove definitely puts out great heat and I didn't have a single problem with it last year...not even an auger jam. Overall I've been really happy with it, my only complaint is that its a bit of a pain to clean (although I have nothing to compare it to). I used Green Supreme pellets from Lowes ($209/ton last year) so that may not have helped from what I've read.
Great idea on a basement hearth pad!