This will be my 3rd year running my Intrepid Flexburn. The first year was kind of rocky, last year was better, This year should be better than last year. Mine is a decent little heater. It will heat almost my entire 1st floor (about 1500sqft) even though the layout isn't great for it. Unless it is shoulder season no heat gets upstairs. I should have went larger, but oh well there's always next time. So far it has been reliable and I can't really find any faults in the stove itself. The issues I had were mainly user error and I think I have some issues due to a bad install.
I know that
@Woodsplitter67 recommended looking in the manual for temperatures not to exceed. I have not found that information anywhere online or in the manual. That being said you should absolutely download and read the manual a few times. I will typically reread it before the season. If you are going to use the Cat then I'd suggest that you get an Auber thermometer. A bunch of people on here use then and mine helped me run better last year. There are threads on that somewhere.
Overall I think that a lot of the negativity towards VC stoves isn't necessarily warranted. Sure I have some minor gripes about the stove, but my wife that hasn't exposed herself to all of the internet hate or worries or overfiring or anything like that loves our stove and runs it just fine.