Question about iRobot Roomba s9+

Smart maps are great. You can define zones where it should not clean and you can divide large rooms into virtual rooms and only clean a part of them. The older Roomba 980 does not have Smart Maps.
With the + you also get the hardware to empty the robot automatically. I find that very practical. Emptying the Roomba 980 left more of a mess (dust around) ... so it wasn't that practical. The S9+ automatically empties the robot. Disadvantage: You have to buy the emptying bag.