I am also a dealer for Heatmaster and while the G200 isn't my favorite stove there isn't anything wrong with it. If you have to have a gasser it will work as well as any other. I personally don't like gassers of any brand because of the additional cleaning that normally comes with them. I prefer a furnace where you throw wood in and dump the ash pan once a week and nothing more.
Trust me, there are gasifiers that don't have all those cleaning/clogging issues. Actually there is less time in maintaining a gasser I beleive. Now I haven't ran one a full winter yet, but know of several that have here in my area. Tube cleaning time with just ok wood is only every 2-3 weeks, with good wood I know guys going 6 weeks and still just fly ash. The guys cleaning every 2 weeks were burning 35% moisture wood.
On the models I mention, it takes about 6-8 minutes to clean it, including removing the bit of ash. About the same amount of time that it takes to empty ashes only u don't do it as often. Now throw in the fact that it only burns half the wood, if a guy was burning 12 cords before and now cuts 6, I think he saved a heck of a lot of time. That's why I'm saying there is much less work in a good gasser.