I do belive the posts in question on catchin fire was the older model with mechanical timer.
I have a bunch of those timers in use and have yet to have a problem...While the digital may be a bit more involved to set, its not hard once you get used to it. If its like most things, once it set you tend to loose directions and forget how (typical for digital watches / funcitons etc) I find them reliable. I even find the old mechanical types just fine as well. I have them in use for all kind sof things such as auto watering my poultry cages, controlling brooder lights and layer house lights...as well as on my fresh and salt water tanks