I have the Princess Ultra with blower kit.
My place is a fairly "standard" 3 bed/2 bath ranch, about 1400sq ft. 9ft ceilings in most of the house, vaulted ceiling in the living room and kitchen area, peak is about 16ft.
The Princess does fine heating the house. If it's pretty warm outside (not much under freezing) I have to only put a couple pieces of wood or it will heat me out of the place.
When it's fairly cold outside (like -20*) the back of the house does get colder. The master bathroom being the worst for that. It's not because the stove isn't big enough but rather I can only more the air around so much.
On a -20* day if it's 75* in the front of the house (where the stove is) it might be down to 65* in the back bathroom.
The stove is pretty effecient. I burn in the area of 3-3.5 cords in a winter. I usually start heating in the evenings in September and often have a few fires into June. 24/7 heating is a good 6 months. I only let it go cold to clean out the ashes about every 1.5 months.