We have a Pentair Prowler® 920 for about a year now. I HATE IT. We have had multiple issues with it. I find it upside down, only runs for 2 minutes, only 1/4 full with leaves in the pool, eats its own cord. I spent too much for it from a pool builder that we decided not to do our renovation on our pool. Any suggestions. We have a 17,000 gal pool with some steps and benches. More of a kidney style. Please let me know if anyone has used any of the robotic cleaners as they look too good to be true.