"I bought this stove about 8 years ago and have used it extensively on hikes and winter camping. It has the ability to go from a blast furnace (which is extremely noisy) down to a quiet simmer. This ability is its strongest point -- you can melt snow for a cup of tea in minutes or you can create some trailside gourmet foods.
The stove is advertised as a multifuel stove, meaning in addition to white gas (naptha), it can burn unleaded gas, kerosene, diesel, and other fuels. In my experience it will boil water with white gas in about 3.5 minutes, unleaded with 2-stroke mix (it will burn this as well) in about 4 minutes. When burning kerosene it will get VERY difficult to use (the pressure in the bottle must be very closely monitored) and you can expect flareups and flameouts (and a clogged fuel line). If you plan to use fuels other than white gas experiment BEFORE you hit the trail to make sure that you understand how the stove will opperate. After you use another fuel it is a good idea to run some white gas through the stove to clear the filter ASAP.
I have had no problems with the pump (yet).
The stove will support my pressure cooker when it is full, but it is a good idea to get the trillium base for additional support.
A very good investment."