On the right-hand side it has the rotary brush... in the middle is the suction slot (slightly shorter than the hoover on the right and left), isn't it? Does it then have 2 cm on the left where it simply drags the cleaning pad over the floor that has not yet been vacuumed (where neither the suction slot nor the rotary brush can reach)? If there is dust and stones there, for example, won't that scratch the floor? And: Can you also let it run without the pad?