UCO - unidentified cleaning object

we have artificial intelligence in our home.  (cue creepy music).  today our irobot roomba arrived.  i was a bit skeptical about this robotic vacuum cleaner - i thought for sure that there was no way this gadget could hold up to my standards of cleanliness, but i've been pleasantly surprised.  we bought it thinking that we'd try it out and if it wasn't doing the job then we'd return it and get a non-alien vacuum cleaner.  so far i'm totally impressed and slightly freaked out by this large robotic disc... it sleeps in our room...