Yes, they work as advertised. You can get them from Campmor in Paramus, NJ.
http://www.campmor.com/I keep two 44-hour and two 120-hour candles in each adult kit.
Bear in mind that the alcohol/coffee can/TP heater can absorb quite a lot of alcohol. The candles, OTOH, *will* have some hot liquified wax once they're going. Properly filled, the alcohol burner is unlikely to spill liquid fuel.
I'd like to see one of those heaters made with 100% cotton TP (Purely Cotton brand) as opposed to wood pulp paper to see if it makes a difference.