It is very good at mopping, however it can't climb any incline or threshold. You are expected to carry it to where you want it to mop unfortunately. You need to buy mop heads for it and (very expensive) iRobot cleaning fluid only. I have tried to contact JbHifi multiple times about buying required accessories for iRobot products but have not been provided any support. It will mop quietly and well any areas it manages to access. Jb really need to look into stocking the accessories for import products like this.