It isn't so bad as people think, a day or two a week if I have the time I just go hard for a few hours when I'm zen. Working the press and measuring powder charges isn't bad at all, in an hr I can bust out 100-200 rounds using the lee quick change bushings, depending on whether I take the scenic route and stop to smell the gunpowder.
Having said that, 5.56 LC case prep is the bane of my existence. Honestly the lee trimmer is the best I've seen for the price and for time once it's properly chucked up in a drill. I've seen the wft and zip trims and whatevers, but I just can't beat a quick trim, followed by a quick deburr, chamfer.