The only problem I have is that a battery that isn't fully charged will freeze and switch off. It looks like you're only getting half the battery life before you need to replace it. It's well made and durable, I wouldn't recommend it for a busy heavy sanding shop but I think it will work for my home workshop and I have my own Dewalt to rely on. I also brought a saber saw and a Worx 20V AXIS 2-in-1 jigsaw which I will review once I've used them.