I'd say it's as easy as it can be. I clean my coop out twice a year. I use an old coal shovel, and scoop out everything into a cart. If I'm feeling extra energetic, I'll sweep it out with a broom. That's it, I don't mess around with mopping it. I could if I wanted, but I don't, no need.
Thanks! I was worried that maybe when I shoveled it I would tear it.