Money saving expert is a good place to research, too.
Some points about my experience:
It takes more maintenance & time than a regular boiler, lot off faff for the amount of heat you get out.
They don't save you much/any money unless you can mostly used scavenged wood, I reckon.
I make a mess getting wood in and out of the house, then I spend time cleaning it up (more vacuuming in long run).
Had a few sparks burn holes in carpet (never had that with open fire).
Most the wood I buy needs to be seasoned for a further 6+ months before it burns as well as I'd like, so I have to store a lot of wood.
We do scavenge a lot of our wood, which means chainsawing ourselves (some would say quite risky).
Friends get used-up pallets delivered for almost free which they saw down to size, burn well, I understand, and very cost effective (they had huge piece of land, though).
I sometimes get splinters in my fingers.
The area around the stove is always unsightly with lots of wood & bits of paper stacked up (not found a better way to do it).
It is great for getting rid of paper waste (iffy value to recycle).
You need careful costings on your own situation, chimney may need lining, which is rarely cost effective unless a beautiful stove would raise your property value.
There is an art to how you use the vents to get the temp up and keep it up & burning efficiently (just a learning curve, not that hard once you know how).
Ours was installed badly, dangerously even. Beware of cowboys (although they did come back & fix it for free with apologies). Then it had a broken part (inside panel) which DH has mended (we hope) but seems no spares available?
Ours is about 4 yo, I think? And an especially small model, which I don't recommend tbh.