The ageism in these reviews is palpable

Rating: 9/10 (1 December 2019)

Yeah they're old. They're also some of the best of the past 30 years. Guess what, mobsters get old. These comments really piss me off.
It's a great character study. Everyone does an excellent job. It's not your high octane stuff from the 2010s, it's a throwback and a bit of a history lesson. My suggestion is to enjoy it for what it is.