I received this and LOVE it. Its perfect for my upstairs bedrooms as we only use them sometimes.  It picks up everything it crosses! I love that there is an app that you can use to control it and see the diagnostics. You can see the battery life as well! All it takes is one little press and the vacuum goes back to the base to charge up for the next time! It also tells you when there is an issue. The actual unit SPEAKS. It tells you if there is an issue, if its stuck, when its going back to the charging base and it also tells you when to clean out the canister! I love it and use it all the time now!