[Hugh R]

I had one for a few years, but it died. It works well, set it for when you are at work. Won't go off of stairs, picks up a lot of dirt. You need to take the bottom plate off and really clean the underside of the drive wheels every few months, not hard, about a ten minute job.

The "lighthouses" are little Infrared boxes you put in, say a hallway, and it won't cross that beam. I find it kind of cool that it will find its charging station and park itself. Once in a while they get stuck and can't figure out how to back out, so you need to figure out where it died.

Costco