This multi-tool is so handy to have it's amazing. I use this so often that I don't put it back in the garage. I use it when I need to sand my wood for my epoxy projects. I use it when I am doing body work on my car. The fact that there's no cord that you have to plug-in and then work around is truly delightful. The battery gives it just as much power as if I had a plug in!
When I'm sanding my wood, I use a lower grit sandpaper and slightly lower speed. When I'm doing my body work on my car, then I have a much higher grit sandpaper and I tend to put it on a higher speed as well. It works great and I get to work done in half the time. The battery lasts a while too. I was worried that I would only be able to do a little bit and then the battery would go dead but that's not the case. It's got plenty of battery life that I'm worn out long before the multi-tool is!
I wouldn't trade this for anything. It's made my chores much easier.