This is the best thing I ever bought. It vacuums and mops. You have to download the app to use most fuctions. Although the listing says does not work on 5g this vacuum actually DOES work on 5g. To make it work you have to pause the 5g so it drops down to 2.4. You do this in your modem settings. Then you have to forget your wifi in your phones wifi setting and reconnect this will put you on 2.4 which the vacuum needs to connect. Once that is done you have to turn your Bluetooth on then open the app and press both buttons on the vacuum for 3 seconds to connect the app to the vacuum. You will here a voice says connected to the internet when you've done it right. You only have to do this once to connect the vacuum to the app. You have to do this in about 10 minutes because your wifi will automatically revert back to 5g. Then tell it to sweep from the app. When you first start it up it maps the entire floor of the house with lidar before it does anything else. The one picture is the map of my entire 1st floor. The 2nd map is the same map after editing, naming my rooms and customizing the settings for each room. It also shows what rooms it is cleaning and where the robot is at any given time. The build and functionality are are why I bought it in addition to not having to vacuum and mop myself. I have a bad back and less broom and mop pushing works for me. It has lower noise level than a regular vacuum and I can run it at night while I am sleeping. I don't use it on big spills just to keep the floor clean for the most part. It really does not run into things like other robot vacuums. It works quite well for my needs. The app takes time to get used to as there are no directions on its use. There are only set up directions for the vacuum itself. They also send out updates to the app and possibly to vacuum also as I have seen a check for update in the vacuum setting. I am still trying to figure out the update and what the change was and I'm pretty tech savvy. I have figured out most of it and it does what I need it to do. You basically tell the app what to do and it does it. I can tell it to do whole floor or just one room also you can set to mop and vac or just vac. My carpeted areas are set to just vacuum while my hardwood and kitchen floors are mop and vac. I just turn it on let it do it's thing and go out. Sometimes I forget to start it before I go out. So I just go to the app and program it remotely to do it's job from anywhere I am at. I have a dog and it does a good job of picking up loose hair. They only thing you really need to be proactive about are loose cords on the floor (For the loose cords it put no go zone up) also make sure you put any shoelaces out of reach of the vacuum. They will get tangled in the side brush. If it does it will talk to you and tell you. If you don't remove the jam it will turn itself off. Also you can not use traditional floor cleaners in the water tank. I highly recommend this product.