I though I'd seen this before. It must be one of Scorsese's finest directorial efforts, keeping the plot ticking over while seemlessly splicing in all sorts of things. The characters develop and the audience remains engaged. My only beef is that it is impossible to empathise with any of the characters here. I'd go so far as to say that this is de Niro's biggest failing as an actor, his incapacity to make us genuinely give a shit about his scumsuckers.
Was this a retread of Goodfellas? Heh, seems I haven't seen that for a long time either.