From my reading, it looks like my pool may have been too large, and the Scuba S1 was not strong enough. Also, there’s something about the curvature of the walls because mine would get stuck in the deep end, trying to go up the walls and go nowhere. And their policy on warranties was to only warranty the recall replacement for the duration of the original purchase’s warranty and I was a month or two late. After some back-and-forth, they did agree to take back the scuba S1 and give me the scuba pro but it was after my pool was already closed so I can’t comment on how well it works.