iRobot Roomba i4+ vs iRobot Roomba S9

The history says it cleaned 400 square feet in an hour. None of the jobs ever were completed, mostly because I got tired of the noise. I moved the base station a number of times, and each map is broken, looks like I need to do another reset after finding a permanent position. Overall, mediocre

I don’t recall the error code but it was common with many S9+ that were released around Christmas 2020 but whatever it was, when that error struck, your Roomba was dead. You’d expect better from a $1K machine. Whatever the case, in the 2 days it worked, it was ridiculously loud compared to the s7, was the rudest little bugger ever (pushing chairs out of the way, knocking things over), and it did a half-ass job cleaning things.