Roomba 4230 Scheduler Robotic Cleaner

I was not real sure about the quality and eficiency of such a thing. once it arrived i turned it loose on the kitchen and was amazed at what it picked up then i turned it loose on the bedroom WOW! it cleaned in places like under the bed and could not believe what it picked up. this thing is outstanding.... so today i purchased a new scheduler roomba. it is outstanding at best.