When I first found hearthnet I had stove problems on the cat stove I had bought. I really didn't even know the stove had a cat until after I got it home and read the manual.
My problems had nothing to do with the cat, but after posting to hearthnet, I began to regret my cat stove purchase. (Anybody miss the old Ceilidh forum software? I don't, but I remember when I could read all the posts and get a feel for who everyone was. Too much traffic these days. Ahhhh, the good old days... but I'm wandering...)
I got my problems fixed with elkimmeg's help, and lots of advice from others, but I was assaulted by so many "anti-cat stove" posts (at least, that's how I remember it), that I felt like I might have made a big mistake buying what was referred to as "old technology". I was the lone ranger back then. Burning my cat stove and getting familiar with it. Forced to defend it on occasion.
Then, my b-n-l bought a new "non-cat stove". I was envious. He had more fireworks and it seemed like it started faster. At least, it seemed to get to secondary burn faster.
Fast forward to now. There are lots of us cat stove burners on hearthnet now. And I'm glad this technology hasn't been eradicated by marketing buzz and what I'll call stove shop sales psychology for the buyer without a clue.
After burning my cat stove for four (4) years now, I have liked it better every year. I use less wood every year. And I get more heat into the enormous room it warms each year for the same amount of wood, or less. I guess that suggests a learning curve, but it's nice for a product to function better each year than the other option.
I burn my stove nearly every day. Usually between 8 and 16 hours. Median probably around 10 hours per day. On mild days my wife always asks me, "are we going to have a fire tonight"? She loves the cat stove, even though she thought she would have trouble with "a stove" instead of a fireplace since she wouldn't be able to "hear and smell the fire". Boy has she changed her tune. She LOVES the heat! I never hear anything about "hearing" the fire anymore. Life is good.
And my brother-in-law? Well, he still hasn't had his first fire this year. And he may get better at firing his stove with more usage, but I've seen his stove suck logs at what I'd subjectively call twice the feed rate as my cat stove. So I'm very happy with my cat stove. But like I said, there was a learning curve for me. I know others who have had less of a curve, and those who have had more.
One thing you don't want to do with a cat stove is throw a bunch of wet wood onto a really hot bed of coals and then immediately engage the cat. Stuff like that may seem like common sense to us long time cat users, but for a newbie, it may seem like a good idea on a cold night, when little or no thought was given to building a nice dry wood pile the year before, and POP! goes the catalyst. This isn't really a problem with non-cat type stoves, but I still prefer my cat stove. I feel I burn less wood than I otherwise would, and splitting it all by hand makes that seem even more important to me.
Still, I wouldn't hesitate to buy a non-cat stove either, if I liked the styling and it fit into the hole the best.