I somehow wasn't interested in this when it came out in 1990. Gangsters didn't really appeal at that time, I guess? Maybe the idea of a based-on-a-true-story gangster film? Although I don't think I knew that about it back then. I think I only learned it when we decided to watch it now.
In the intervening decades, of course, it has come to be considered a classic, on peoples' greatest of all time lists, all that kind of thing.
Turns out past-me might have been right. It's well told, reasonably interesting once it gets going, but it didn't do a lot for me. I'm glad I've finally seen it, but it won't be going on any of my favourite lists.