An inexpensive nibbler that works. There are one or two grouses - the 'on/off' switch is a bit of a pain, it is slightly awkward to hold and thus to guide and it vibrates. It really does shake, enough to make an accurate start somewhat difficult. I cured that by using a guide bar clamped in place but cutting a curved line is difficult without a template guide. a peed controller would probably get over that problem.
Having said that, this is as good as any other nibbler I have used and, for the money, it is a tool that I use and can recommend.