The thing that I took away was that many middle to late main plot issues such as ralph, steve buscemi, Jackie Jr season, gay guy, marriage split (then back together)? The feds, Christopher's ambition, the nyc family, etc all kind of faded away or ended abruptly and unsatisfactorily. The main thing I kept tuning in for was to see how it all would be wound together at the shows terminal and how Tony would be done in by all this in the end (or prevail).
But instead we got a tepid final season and the grand finale was Tony ordering onion rings and getting randomly shot by some guy in a members only jacket? And the only way to figure that out was to read people discussing and arguing theories on the internet.