Diana and I returned home tonight to find the Roomba box waiting outside our door. Of course I had to set it up immediately and try it out. The manual recommends a deep 16 hour charge to start, but I figured a few minutes running around would be good for it.
The co-op looks clean, but sure enough the collection chamber had a significant amount of dirt in it. I'll write more when it's fully up and running, but I'm impressed so far.