[GWN7]

No it dosen't climb walls. Just does the bottom. I've had it for 6 years. No problems except in the fall when it tries to eat too many leaves. My fault for not skimming the leaves often enough. I have a 150 year old Elm, a Maple and two apple trees in my yard.

It's a simple unit so there is really nothing to break. The water suction from the pump activates the scrubber which also makes it move. So you have to empty the strainer often if the leaves are falling.