I found this to be an extremely effective stove - it boiled a pot of water really fast using surprisingly (to me) little fuel (about 4-5 twigs, and some pine needles to get it going). However, I consider this a higher fire risk stove than standard, and here follows two important caveats:
1. do not consider using this in very dry conditions where there is a fire risk
1a. if you must, then be sure to use a non-burnable base - hot embers will fall out and if whatever you have set it on is flammable, you will burn that too. So - use only on damp ground, rock, or within a metal base (I used the lid of my stove), unless you want to set the forest on fire. It burns hot!
2. The little clip that is meant to hold the whole thing together doesn't really work. Even when I was careful (and made sure I'd clipped it in properly to start) it would kind of fall apart if I opened the little door to add fuel. It didn't fall apart to the extent that my dinner was on the ground, but it just didn't feel super stable. In the future when I use this I will just lift the pot off and add fuel through the top. This ties in to the first point - because the walls kept unclipping from the base, embers kept falling out onto the ground. Make sure the base you're standing it on is not flammable!
Overall though, I think it is a good stove if you are sufficiently cautious.
This review was written in the old system and had content requirements that are different than reviews written today.