Although I don't have a Brukit, I do own a jetboil flash, and several stand alone stoves and to me, the pot makes the most difference to the time to boil, using the same stove, and the same amount of water, the time to boil 1/2 a litre of water is almost halved using the primus eta pot (the original one) as opposed to a Titan kettle.
The jetboil is only supposed to boil up to 400ml of water anyway, but it falls between the two other times. Usually, I prefer the Titan pot because the weight of all the component parts is less. The actual time is not important, but it would seem the Brukit pot is less efficient than others.
It does seem good value for money. I am surprised that the small cannister cannot fit inside though.
