by crap out do you mean heating element cause thats like $5 fix. like i said only happen once to me. Also I prefer forced air over still air incubators, have had better hatch rates, as the temperature is evened out through the whole incubator, where still air incubators tend to have hot spots(one spot of the incubator is hotter than another spot) Also with incubator like the one the OP asked about i have had only a .8 degree flux in temp and straightens it still out in matter of seconds. I've set it and left it to do its thing as their is alarm on it that will beep if the temp fluxs more than 1 degree and if humidity drops below 40.