I use Magic Loop all the time, and it was in reaction to a hat pattern which called for THREE sets of needles. Only two months after learning to knit, the idea of THREE sets of needles for just a hat seemed overwhelming as well as...ah...stupid.
I actually learned ML from Sarah Hauschka's booklet! The booklet will stay still, unlike online videos. I mean, they do
stay still, but you've got to let go of the yarn/needles to make them start/stop....
I'm having trouble envisioning the directions for the baby hat. Is there a link to the pattern (i.e., is it available somewhere online)?