A worthy upgrade

5/5
As a long time owner of an 800 series I wasn't expecting such a big leap. The new navigation algorithm combined with SmartMaps add a new level of convenience supporting use cases that simply weren't available before (clean bathroom first and then rooms X, Y, Z). Suction power is equally improved from the previous models and together with larger brushes seems really making a difference. As a side note, aesthetic has been reworked and is less 'disturbing' if left visibile in your living room as an example.