You have to put it in perspective in regards to weight. This unit takes the place of stove, fuel, battery backup, and or solar charger. When I first saw it in the store and picked it up, I was shocked at the weight and size. I put it down and thought to my self, no way will I carry that. But it stuck in the back of my mind. I thought about all the items it would replace and a few months later picked one up.
What I found after use was that the design made sense. It simply works and works well. The other advantage is that you no longer worry about fuel. I sit and enjoy the heat and cook at leisure without the constant concern of fuel consumption. This guy is surprisingly efficient at how much flame you get from a few twigs.
When I took out all of the battery backups, solar charger, pots (I also have the biolite kettle) and fuel, my pack felt the same.