Pros: large battery, very sensitive, efficient navigation and movement, detachable main brush ends for detangling tangled hair, performance on hard floors. Cons: Price, poor quality mid- to low-pile carpets Verdict: Get the 360 S5 for about $300 less. Let me start this review by saying I'm completely blown away by the 360 S5 and really intrigued by the upgrades that should come with the 360 S9. Unfortunately, the S9 fared worse on most metrics I tested. The navigation of this robot is great…