Review on Efficient Electric Spin Scrubber: Cordless Motorized Shower Scrubber with Portable Handle, 4 Replaceable Brush Heads - Ideal for Bathroom, Kitchen, Toilet, Bathtub, Tile, Sink & Wall Cleaning by Tania Monae

This is a great brush for cleaning small spaces. Unlike a large bathroom brush, which works well for cleaning tubs and grout, this one works best on small areas like the liner of a washing machine. I usually spray some bleach onto the pad and then use this brush to clean and evenly distribute the bleach around the pad. It is very suitable for this purpose. The brush has slow and fast modes. In slow mode, it doesn't rotate as much and downward pressure can stop the rotation. This might seem a bit odd at first (or even make it look like the brush is broken), but it actually works well to distribute the cleaner without spilling it when the brush is spinning fast. In high mode, it spins with ease even when you apply a lot of downward pressure. The only caveat is that the USB-C port isn't covered, so you can't get your device wet when the port is open. I usually leave my bathroom brush to clean the bathroom so this is not a big problem for me. The USB-C port also only charges with a USB-AC cable - it won't be recognized if you're using a CC cable.