I hope it performs well for him. I'm sure it will be fine so long as he doesn't want to speed around much.
I had a Chinese-manufactured 250 some years ago (CFMoto I believe? Same as QLink? I doubt they're around anymore). The engine was made by a company named Lifan I believe. It was not fast. Or quick, or even safe, but it was two wheels and an engine. It did fine until I gave it to a friend of mine. He rode it all summer and forgot to check fluids. Ran low on coolant and popped the head gasket. We had a good run with it.
Hold on to that Kawasaki
and have fun beating your kid in drag races.