It will give you an idea of how long printing takes (for the LR3) - admittedly I’m more or less home all day every day, so the printer can just chug away to its heart’s content, but it’s surprising how quickly it all gets done printing just a couple of items per day.
Your first 24 hour print can be a bit nerve wracking, but knock some of the others off to get a bit of confidence and see how you go.