At first I thought that robot vacuums with automatic dust removal were not needed. I mean how difficult is it to remove the dust fan from the vacuum cleaner robot? But then I saw a big sale and decided to give it a try as there was free returns and wow I love it. Now I only have to remove the dust box once a month and the suction power is much better as the vacuum cleaner is always empty every time I use it. I used to be lazy and only came to the table once every two weeks, which resulted in the robot working with suboptimal suction power for the second week because the dustbin was mainly there for that. Basically, it makes your robot vacuum much better on average. This bot has all the other features too – an upward-facing camera to track its location and navigation assistance, Wi-Fi, and a great app. These devices are incredible indeed, costing about the same as a basic room without an automatic dust bag emptier. Compared to my old robot vacuum, this one covers the same area in about 1/4 the time because it actually knows where it is and follows a logical path through space rather than a random roam.