Better than others but not perfect
If you don’t mind the smell of woodpellets and the noice, I think its the best there is. Took some getting use too. But with practise, I prefer this to all other options. Greener, alot cheaper (Buy the untreated pellets for fireplaces) and still the least odor in the house of all. I add new coal filters and a pee-gas-patch and all guests say they dont smell them unless newly used. Success! No litter around the house, no stank, and easy to clean.