I surprised my wife with an iRobot Roomba S9+ for our anniversary. I decided to go with this specific model since it has received mostly favorable feedback, I thought the design was appealing, and it works really well in the space that we have available. Instantly downloaded the application, and after that was done, the vacuum cleaner and the smartphone were connected for easy and quick control. After completing its cleaning cycle, the vacuum cleaner travels to every nook and cranny of the space, getting as close as it can to even the most inaccessible areas, and then returns to its home base. The noise level is only 60 dB, and as we usually clean everything except the bedroom at night (when we sleep), we don't even hear it, so it doesn't prevent us from getting a good night's rest. Included are additional filters as well as a brush. It just took us a few minutes to learn how to use the vacuum cleaner's programming interface, but ever since then, we have been unable to get enough of using it. There is never any dust in the house because it is always spotless.