Don’t buy this one. Get the J7+ one. It’s way better and has excellent features. This one brand new is $799.
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$100 more on more mothership brand new.
I have an S9+. It has a design flaw - the rubber that they use on the wheels is too soft and the wheels wear down. I have replaced the wheel modules twice (about 6 months a part). What happens when the wheels wear, the robot cannot dock. The docking station is a slight incline and the worn wheels do not have enough grip to get the robot to dock. So you end up with a dead and dirty robot that you have to constantly push into the docking station to empty and recharge. Wheels are $35 each (irobot was charging $79 a pop) and out of stock. Not worth the headache. The j7 model is much better.
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