For this price, its downsides are tradeoffs we're willing to make. That's why it's also one of the best cheap robot vacuums. We've tested many robot vacuums at Tom's Guide. While most perform great, they aren't as easy to recommend for everyone. The Dyson 360 Vis Nav almost has it https://www.youtube.com/watch?v=Lhgk6D1ayeM&