My friend bought one and sent me a video of him chopping an onion in about 15 seconds. I immediately bought one and have not regretted it. This is such a time saving device weather it's for onion, peppers of of course, French fries. There are different size cutting blades that come with it depending what you are chopping. It is very sturdy and well built. I guess the blades wear out after a while but that is expected. We have had ours for 3 months now with no issues and have saved tons of time by using it. Highly recommend!