Samsung Powerbot R7040 $299.99 Free S&H. All their models are on sale as well. I saw the prices for past SD posts, eBay, Amazon & even the Samsung Shop app itself this was the lowest price I could find.
I watched some reviews and seems equal to or better then the roombas. It has a 30 day return policy if needed. Purchased for wife’s BDay on Sunday and it arrives in 2 days even though it said 5-7 business days (-_-)=b