I got this to go places my Roomba can't. For example under furniture. But it only goes under my sofa. Anything else, double armchair, armchair, TV stand, locker etc. (see photo) is not suitable. Even a crevice nozzle will not suffice because the diameter of the pipe is too large. Look at the pictures in the Revain ad. In the picture, furniture is too low for the vacuum cleaner. Stairs: Yes, it fits on the horizontal part of the step, but don't cover the vertical part with carpet because the device is too long. It only covers the outside edges. So you have a 6 inch section in the middle of your attachment that just can't be reached with a rotating brush head. Finally, all the ads emphasize convenience, and it comes with what appears to be a decent storage station. However, if you understand that you collect pet hair from furniture, then every time you use it, you need to remove the entire vacuum cleaner, disconnect the hose and floor nozzle and put them somewhere - they will not get up on their own. Of course, all this has to be collected in order to return it to the station. So, TurboEraser isn't just something you can pick up and use. Summary: It has no gap to reach most of the furniture. The TurboEraser tool does not work on the vertical part (riser) of carpet steps. Storage station - all or nothing: inconvenient.