ronfwrote a review of Park Tool Master Link Pliers on December 17, 2019
Familiarity: I've used it once or twice and have initial impressions
Does what it says.
The quick link on my Dura Ace 11 speed chain is really stiff, this tool both removes and install the link.
Not sure how I will install a 12speed XTR link on my Mtn bike if I ever need to repair on the trail. Holding the real wheel and stomping on the pedal is not going to be easy. Lets hope I never need to fix a chain when riding.