Unicorn nozzle conversion Ender 3v3 KE

Hi folks. I’m changing my nozzle from 0.4 to 0.6. While looking for 0.6 nozzles I came across the unicorn “quick change” nozzle and wondered whether it’s worth converting. I’ve had no trouble with the standard set up except a blockage that just happened for the first time after 200 or so prints. So can anyone answer these questions please:

  1. Is the conversion worth it?
  2. What makes it quicker to change? Is it just the longer thread means no dismantling to grip the hot end while unscrewing the nozzle?
  3. The ads made it seem that the nozzles just fitted but I’ve also seen a conversion kit. Which is right?
    Thanks folks. Any help appreciated.