I've been using my mini chopper for more than a year, and it still works very well!
I am not sure what's this mini chopper really intended for, but I only use it for chopping my garlic. I do cooking all day, and I use garlic all the time, so my friends recommanded me this chopper, and it really saves me a lot of time and work. Indeed, I like so much that I even got one for my mom, and she loves it!
I've also used it to chop other small stuff like nuts and herbs, and they work as well. I think this chopper is good for chopping small stuff, so you don't need to use your big food precessor all the time.