>>210256>>210250I have used the Reactor on a few occasions, and it is like having an induction stove outdoors: fucking fast and it makes a cool noise. I haven't tried simmering with it, but I hear it is not so good with this. To quote one reviewer "It has two settings: off, and full rocket blast".
The burner and a small canister fits snugly into the pot for transport. Not exactly revolutionary, but there is particularly little dead space compared to other systems I've seen (not a whole lot, I'm but an /out/ grasshopper), and it doesn't require a special canister to pull this off like the JetBoil does.
All in all, I say the Reactor is great if what you want is to bring water to a boil with minimum fuss.