iRobot Roomba i7 Wi-Fi Robot Vacuum

I must admit, I was very skeptical when I purchased this refurbished iRobot i7. Not only about it being a "refurbished" item, but the whole idea of an automated vacuum. We found ourselves having to constantly sweep or vacuum inside our back sliding door because of the dog dragging dirt, mulch, leaves into the family room. We have a short haired dog that moderately sheds, the i7 has had no problem picking up the dog hair without clogging. We have wall-to-wall carpet in one room and hardwood/hard surface floors with area rugs in a couple other rooms, the i7 has had no problem transistioning from the hard surface to rug (and back again) and cleaning all of them. It has the ability to "learn" your floor plan and makes a map of it. You can then direct it to vacuum by room(s) or the entire house. You can even identify "problem areas" for it to vacuum more frequently. You can set up a schedule or use the app to run it. It also connects to Google Assistant or Alexa. Through those devices, you can direct it to clean one or more rooms. You can even set up "no go" zones so it doesn't bump over plants, dog dishes, etc. I included a photo of the floor plan "map" the device made of our first floor. It takes the i7 two entire house vaccuming sessions for it to "learn" and make the map. You then edit the map by delineating and naming the rooms. I set up a couple "no go" zones to protect small potted plants and the dog dishes from being bumped and possible knocked over. After my initial skepticism, I am VERY impressed with this i7 iRobot two weeks into my ownship of it.