Last night I used the Rada tomato knife, but not on a tomato. I used it to cut a big brown onion and was amazed at just how easily it did the job. Because it’s so thin and small it feels almost surgical using it, but it really worked great. However, I’m probably going back to my 5 inch Analon Santoku because I prefer crunching through the onion with a blade rather than drawing through it.