I finished the first 3 seasons. Pretty mixed feelings. There are times when it is great, but times when it is awful and feels like a chore to continue watching.
Tom and Greg are easily the best part of the show. So many great scenes with the 2 of them on screen together, but the best part was Tom sticking the knife in Shiv's back in the finale. I was probably ready to check out until that moment, but I may keep watching to support #freeTom.
The narrative absolutely sucks. Company in huge debt, let's find a billionair "friend" to fix it. Then there's a bear hug and proxy vote that lasts multiple seasons and goes nowhere. Then they suddenly have extra money to buy Pierce except that Pierce doesn't want to be bought. Then they want to buy Mattson except that their company sucks again and Mattson wants to buy them. It's an endless cycle of almost takeovers and mergers that always turn out the same. Cruises are kind of a huge problem except not really problem at all. Someone has to go to jail, no wait nevermind no one needs to go to jail. Boring and entirely predictable.
The Roy kids are all insufferable. Roman is probably the worst because his dialogue is like listening to 13 year old Seth Rogan hurl insults at everyone around him. Continually. Shiv is a horrible person. Kendall is probably bipolar or has some other severe psychiatric issues, compounded by substance abuse and a history of killing someone, and it's just hard to watch him on screen.
I think some of the flaws were tolerable for 1-2 seasons, but to keep adding seasons with essentially the same content will get tiresome.
I predict there will be some technicalities in season 4 that prevent Mattson from doing a clean takeover, so that will drag on for most of the season and eventually they will be back to square one with Logan in charge and each Roy sibling fighting for the CEO position that will never come.