The European manufacturers have quick shifters nailed down to almost perfection for a bike that's ridden on the street. Back many years ago quick shifters were for drag racing full throttle only. For my style of riding a quick shifter is a waste for street riding. Clutchless shifts are seamless on almost any bike when you shift at the proper rpm.A friend bought the 2020 Tracer. He loves it and it kinda has a quick shifter. It only does it on the up shift. It also didn't work very well.
Last report I had was from the first few hundred miles. He wasn't sure if he'd give it time to break in, or if he was going to get the dealer to address it.