Summary: Much better than the separate "spinning device."
Comment: This is my second Visible Dust sensor brush. Unlike the version with separate brushes, the Arctic Butterfly is well made, and spins perfectly every time, building up a nice charge. While sometimes it takes more than one pass to clean my sensor, and now and then I end up with new dust, at most it takes 3-4 passes before the sensor is absolutely dust free.
The plastic cover the for the brush is really welcome as well. The other kit I purchased from Visible Dust had flimsy plastic bags for the brushes which quickly fell apart. Since keeping the brush very, very clean is vital, it's nice to have simple, sturdy protection for the brush.
The only reason this isn't 5 stars is the LED. It's far too dim to use to actually inspect the sensor. It's much dimmer than the $1 keychain LED flashlight I bought elsewhere on the web. It's a nice idea, but Visible Dust really should have used a brighter LED. If you're considering one of these, you might as well buy the Arctic Butterfly 724 without the light.
- Gus


