What is the most reliable flagship robot vacuum from Roborock?

The [Roborock Q](https://www.amazon.com/s?k=Roborock+Q&tag=wehavethat-20)revo Ultra is the most reliable flagship because it just works — the app is polished, navigation is reliable, and the all-in-one dock handles emptying, refilling, and mop-washing without drama. It costs less than the Ecovacs Deebot X8 Pro Omni and delivers a more consistent experience you set up once and forget about.