Amazon.ca: roborock Qrevo S5V Robot Vacuum and Mop - $599.99 (was $999.99, 40% off)

Roborock's Qrevo S5V dropped to $599.99 from $999.99 — that's 40% off. Has the FlexiArm edge-mopping arm that extends to actually clean corners/baseboards (not just the round-robot-misses-the-edges problem), 12,000Pa suction, auto mop washing/drying, and self-empties the dustbin. 4.2 stars across ~3,900 ratings, Amazon's Choice, over 700 bought last month so it's not some no-name unit.