After mopping the floor with the Mova Z60 a few times, I’m shocked by how little clean water it used and how much dirty water it was able to collect. I think the roller on the Z60 does perform better than the spinning and vibrating mop abilities of competing robot vacuums, but I have no experience with those. The fluffer does seem quite effective and the roller is still puffy after a few uses, which is great compared to the Ryobi One+ Roller Mop I have. The Ryobi does get the job done, but the included rollers are cheap and become flat and smelly just after a short while.
Cleaning the dirty water tank is quite easy just rinsing out the tank, but occasionally you might need an old sponge or toothbrush to loosen the debris and dirt at the bottom. The clean water tank is straightforward as well, and you just need to add water depending on your settings.