yeah, i type on a corne everyday: https://mark.stosberg.com/markstos-corne-3x5-1-keyboard-layo...
having gotten over the learning curve, i definitely prefer it over conventional keyboards, but would i recommend it to 99.9% of people? no. people who use these kinds of keyboards have either 1. extremely niche problems, or 2. find intrinsic value in novelty, aesthetics, or diy/experimentation