Can only say that I'm happy with my Keystoker 160, wasn't much to choose from in my area. I'd say from what I have read here over the years that any will treat you as well as you treat them. Every stove requires some time & effort & if your willing to give it you'll be rewarded with good long cost saving heat.
The Keystoker I have is the 2nd one I've owned. Both had issues when I first got them, both used. Both were fixed with some patients and this site. I think it was more or less issues with the stoves not being taken care of prior.
I would buy another any day if I was looking for another stoker.
Again, agreements all around. My Keystoker 90 is giving me a few issues now but only because I have been sloppy in servicing. I did have a hopper fire and that burnt the corner of the feed chute. I guess it just needs a full service this summer. In my application, if i could find a cheap 105 with a 8" top duct feed I would go for it and add a 500cfm blower --- hint hint.