I bought a Polaris robotic pool cleaner for my new pool. It worked great at first, but after a season, the motor burned out, the warranty was voided due to "improper use," and I waited months for parts, with no support. I started searching for similar issues and found https://polaris-pool.pissedconsumer.com/review.html – the rating is low, full of complaints about breakdowns, service delays, and warranty denials. I realized I wasn't alone and chose a different brand. Always check reviews like these before purchasing.