We have heated with a Lopi Endeavor in the living room of our mostly open floor plan 1875 sq foot ranch-style log home since 1994, and it is both efficient and fast heating.
We can get a 20-30 degree increase in ambient room temp in the living room within about an hour or so of lighting it, and except for the really cold (below the 10 degree F mark ) days, we basically light a fire in the evening, let it burn mostly down, and restoke just before going to sleep so the heat in the house will glide down through to the AM.
We also have a gas hot air furnace, but hate the swings in temperature which seem to be associated with using it.
The guy who built the house put the LR main air return for the furnace in the top of the living room wall almost opposite the wood stove, and made sure that there was a recirculate function on the thermostat, so if we turn it on, the heat gets cycled through into the bedrooms and kitchen even with the doors shut, but in practice, we never use it, because it gets too hot in the bedrooms.
Instead, we leave the bedroom door open ( it's just the two of us now) and have a little room balancing fan in the upper corner of the doorway for the really cold nights.
We love the Lopi stove, and the only maintenance it has required, beyond cleaning it out and cleaning the door glass from time to time, is that every 5 years or so, we have to replace the fiberglass rope door gasket, which is easy peasy.
As I/we are gettin a little long in the tooth and decrepit in body, we will likely be exchanging (removing and selling) the Lopi in favor of a coal stove, because we're spoiled by the type of steady bone deep heat we have gotten used to with the 20+ years of using the Lopi, but want to not have to deal with cutting, splitting, storing, and moving firewood, otherwise, I'm sure it would keep providing the same reliable service long after we're dead and cremated.
The only moving parts beside the door and latch is the sliding air damper and diverter for the secondary burning air both of which are of cast iron and never need replacement.
Oops, that reminded me that we have had to replace the secondary burn tubes (there are 3 of them in the top inside of the stove) which are black iron pipes with small holes drilled along them to provide extra O2 for burning the hot gases and reducing the output of greenhouse gases and creosote.
I'm cheap and have some metal workin tools and experience, so I have made my own replacement pipes, but there are some stainless steel ones available on EBay for around $75 for the set of three, and they would likely never need replacement.
I have never used a catalytic stove, but we have friends who have (the guy who built and sold us our house is one), who have and did not care for how finicky they can be and how expensive replacing the catalytic converter became, and not that awfully long after they bought it (about 10 yrs afterwards)- they have told us many times how much they miss their little (now our) Lopi.
That is my experience with the Lopi, which I would not trade for anything except a full-on built on site masonry stove.