It sounds like you need a different grade of Roomba, one that avoids really nasty things and can gracefully fall all the way down stairs to go from the top to t

It sounds like you need a different grade of Roomba, one that avoids really nasty things and can gracefully fall all the way down stairs to go from the top to the bottom of the house. A fair amount of machine learning is needed if a Roomba is able to do things like identify 'nuggets' left by pets, 'cat sick', mystery yellow liquids, slugs by patio doors and beheaded shrews. We as humans have no problems identifying such horrors so long as the lights are on, but for a Roomba things are not so easy. A version of a Roomba needs to positively look for such unsavouries and report back via the app that the house is clear. This is not that far off what the other iRobot robots do - the military ones - so hang in there, one day there will be a Roomba for you.