I finally watched this and finished season 3.
I was anti before watching and then sceptical when starting, found episode 1 rather unfunny and boring, kind of annoying actually, then decided to continue after a friend said he thought it was nice and the ultimate "feel good" series.. which indeed it is.
It got so much better, amusing, entertaining, some very well written episodes, and once I realized one has to suspend the disbelief completely of an American who doesn't know what offside is managing a football club day to day (things like, entering the dressing room before the game for the team talk, going, "right, coach, who do we face today?"), I thought it was very enjoyable and decently stood up the test also for a football fan like me who follows the league closely.
They tackled mental health, they tackled gay footballers (if very rose-tinted), they tackled the super league, ... I wish they had tackled the 115 charges too, instead of all this Man City wankfest they had going on.