Having had a number of choppers over the years, the biggest problem has been that getting them clean made it quicker to just chop by hand. Not now - this just pops apart and goes in the dishwasher! It cuts the onions brilliantly, in a choice of two sizes. The catcher is only big enough for one onion, but it's easy to lift the cutter off to tip the onion out, Substantial and sturdy. Cuts all other veg I've tried, too. Just brilliant!