The Littlbug is an excellent stove that does what its maker claims. To date I've only used it on winter hikes and camps and it has excelled. I look forward to using it on paddling trips. It is well-made, quick and easy to assemble (even with gloves on), and gets water to a boil in good time. This is a stove for those who don't mind tending the fire along with the supper.
It has many advantages. It's quiet - no jet engine roar to drown out the sounds around you. No heavy containers of fuel to lug around. Fuel for the stove - sticks, twigs, pine cones, etc. - is abundant and not petroleum based. The stove packs small and weighs little. And it works.
So what are the down sides? Soot on the stove parts and pots can be messy to handle. Solution - use a pair of fire gloves, and carry the stove and pots in stuff sacks. (Get the stove carry case when buying the stove.) What about wet weather? Carry some dry tinder or fire starter (any competent camper should be in the habit of doing this). Or you can also choose to take along a Trangia or other alcohol burner to use with the Littlbug when conditions get soggy.
I have the Littlebug "Senior" and also purchased the suspension firepan stove holder. It's brilliant! Ideal - especially in the winter. You can suspend the stove at a comfortable height, and not have to dig around in the snow clearing a spot on the ground. And at any time of the year, this system allows you to suspend the stove at a comfortable working height. I love camping, but as the years go by, I'm less comfortable doing things at ground level!
I'm very happy with this stove and expect it to cook many camp meals.