Many thanks to Marion David Poff for sending me one to test! Although he wrote a review, we didn't discuss that so what you get here might be new or maybe not...
Your first impresson of this firestarter will depend on your experience with other firestarters. I had been assured that it was unlike regular disposable lighters and would spark after being soaked and flicked. When it did I got interested really fast! Lots of people depend on disposable lighters - but I hope that my tests and photos have shown why this may not be wise. This unit has significant advantages over disposable lighters.
You get a neat waterproof package containing a Spark-Lite and tinder. The package is durable. Out of the package the Spark-Lite mechanism resists shocks from being dropped - mostly because of its light weight. So far it overcomes all shortcomings of disposable lighters which are very fragile with covers removed to spark properly, and tend to hold water within their mechanism.
So off I went into the bush to give the little sucker a workout. Since I had noticed that it comes with a finite amount of tinder I took along some Q-Tips (pure cotton) well rubbed in petroleum jelly, and some lamp wick. It will ignite these with no problem. In the bush I lit a fire using cedar bark tinder which was ignited with one pinch of the supplied tinder. It worked well! I'm surprised that the instructions don't give some clues to preserving the tinder supply by using just a pinch of supplied tinder. I believe I could light dozens of fires with the supplied tinder by using it to ignite other natural tinders - even fine wood shavings of any dry wood.
Working with lamp wick or Q-Tips was also great. The Q-Tips were a vast improvement over matches in wind! My advice to people who rely on a Spark-Lite is to take a bunch of prepared tinder with you and rely on small amounts to ignite natural tinders. Unfortunately igniting natural tinders was a failure with those I had available. This will no doubt cause great concern to people who have used regular large ferrocerium sticks. I didn't give up so easily and used a tobacco can to char some cedar wood. It was then easily ignited with the Spark-Lite. Partially charred cloth or cedar bark would have been even better. The point to all of this is that the Spark-Lite will light quite a few fires as provided. One of these fires can then be used to char tinder for the future. A can is a convenience but not a necessity as material can be buried under fine ash/silt and heated from above to char in absence of oxygen.