Here I am 6 months later and I think I've mastered this stove thing.
I am truly pleased at how easy the window cleans with cook-top stove wax and if you have a nice hot fire, it STAYS clean for a lot longer than you might think.
Also, my little vac they recommended cleans it up nicely, no more traipsing through the house with the ash pan -- I simply vac that up too.
I keep the feed trim on #2, and adjust the blower to #2-#4 as needed. We had some pretty cold below zero nights this winter and I can't tell you how much this stove heated up my room with the vaulted ceiling that never feels warm even when the thermostat is set at 70º. I get temps of 80º plus! It heats up the coolest part of my house nicely.
I do see how the wobbly cover might contribute to the error messages I get half the time.. I have to wait until after the stove starts because sometimes it will seem to start shutting down and that's when I look and find the blinking light which will go out and clear if you press the red button. (I wish these controls were not tucked so far under and that the panel was decaled on with brighter colors as they are sometimes hard to see)
In any case, I am able to clear the error and then the stove runs for hours.
There is NO chance of plastic or anything foreign in the hopper because I cannot lift a 40lb bag of pellets alone, (neither can he) so I usually just bring in one or two "hods" full at a time.
Lowe's no longer has "Greene Team" but something similar that are slightly lighter in color but seem hardwood and low ash.
As for the damper adjustment and loose nuts, once I'm not using the stove as much this spring, I will get a professional clean out and adjustment. He has already had to tighten up that looseness before. I try hard to slide the cover back easy, but firmly into place so that it makes the connection.
Considering I arranged for the switchover from the wood stove to the pellet all by myself, I'm pretty happy.
I did make sure he came and measured first to make sure it fit, the fireplace was made to hold this type of thing from the beginning.... so it was perfect.