I won't ask if it's worth the money because that depends too much on the individual. But I'd like to hear from some folks that have one of these things about how well it REALLY holds a steady temp for long cooks. Is it reliable enough that you would leave the house to run some errands without worrying that either the fire will die or your meat will get torched? Or is there another similar device that works better? Or, am I just being a paranoid newbie thinking that I have to run out and check the pit temp every 30 minutes?