Our "field test" was what I'd call successful. Everyone who tried it that morning felt it was good tasting coffee; it was convenient; it required only the Cafe2Go box of contents and a gallon of potable water. Following the directions as I went it took me about four minutes to set up. Now that I've done it once it would probably take me less than two minutes next time. Heck, the biggest inconvenience is waiting the half hour (give or take a few minutes) for the coffee to "brew".
At less than $1 per cup of coffee (compare that to any cup of coffee available anywhere) the price is more than reasonable. The convenience of transporting, set up and service makes each cup even more valuable. I'll be recommending this product to plenty of agencies I work with for inclusing on their Mobile Command Posts and in any Emergency Management supplies they keep on hand. You should check them out at www.heatermeals.com.