This little guy is able to pick up not only leaves and grass debris, but it gets the gritty sand that somehow appears at the bottom of the pool.
I have set it for the 4/4 cycle and it is good to clean out 18ft round vinyl pool.
We have an underlayment under the liner which make some seams outlines on the bottom of the pool, but that is no problem for the WYBOT A1.
Good purchase