I have three still air LGs. Last week and this, I hatched (so far, hatching still going on) 15 standard size chicks,18 ducklings, one gosling and 12 banties. I do find I probably have to monitor them more? But all in all, I personally believe they are worth the money. Oh, and the temps do hold well as long as the incubator is in a room where the temperature is pretty steady.