>>662297I'd get one first and live off it at home for the prescribed amount of time, without "cheating." That's the best way to plan for a survival or emergency item. It may turn out to be calorie dense, but lack most nutrients you'd really need. It will take more than 20 minutes to prepare the meals when you are not accustomed to how to do it easily. I'm also betting you'll be feeling pretty hungry if you stick to their meal plan, which is in itself quite fine, but something a person needs to know, so they may better structure their frame of mind for "emergency mode" and not double dip the rationing system.
Something is better than nothing, but being experienced is better than being prepared and clueless.
Also, it seems there is something called a "FireOn disk" inculded in that, but I've no info on how many there are and how long one will last or how many meals 1 could make if they are reusable.
http://www.overstock.com/Emergency-Preparedness/FireOn-Disk-Fire-Starter-Emergency-Heat-Source-Kit/7924095/product.html30mins of burn time per disc. You'd defiantly would need to test that out and everything. I'd go with a multi-fuel stove, one that can but gel, discs, twigs, and alcohol. Even if I had to diy one.