Incubators are like cars. Everyone would love a rolls-royce, but can make do with a kia, ford or what have you.
I have hatched many chicks in a LG, with a high hatch rate. Anyone can that puts a little time in. Can you plug it in and 21 days later have little fuzzy butts? NO! Over the years I have learned that the less you touch it once it is set, the less troube you will have. Touchy is not word for them.
It takes time to learn to use. You can have fun with it and hatch many chicks with it or you can do like many and fiddle with it with eggs in it and kill every chick you try to hatch.
Since your wife went to the trouble of getting it for you, to keep peace in the family, learn to use it. Then show her every little fuzzy butt you hatch.