This thing is amazing to watch! It is preset to clean the walls first then the bottom of the pool. When you start it up, within about thirty seconds it starts off heading towards a pool wall and climbs all the way up to the top of the water line! After scrubbing there for a short moment, it climbs back down, redirects to another spot and climbs up again. The only problem is that it doesn't clean well! After it passes over a spot, there's usually residue or some debris left in its wake.
This is very easy to use and emptying the basket is a breeze. Charging it is straightforward and lasts about two hours but if it doesn't do the job cleaning, then it's an expensive toy.
As you can see in the pictures immediately after it's finished a cycle, it stops on the pool floor at a wall so one can retrieve it with the included hook which attaches to your own pole (purchased separately.) I've tried to show the debris left behind afterwards in the other photos.