Roborock Saros 20: SetupGetting everything ready didn’t take long at all. The biggest challenge was moving the base station around. And when the Saros 20 finished the new map, the original map had been replaced by the new one. I later found out that the Saros 20 can remember different floors, but it just takes some noodling around in the app. At the end of every cleaning cycle, the Saros 20 doesn’t return to base just to charge—it also empties debris into a dust bin (disposable bag included!)