the first few seasons are interesting. But then in plunges into unbridled ,unconnected,inexplicable baloney.There is no reasonable continuity of decor, of seasons, of plot. Every possible cliché makes an appearance. All men are evil or stupid, or both.
Season 4 shows Rita to be a sociopath, as she sulks and seduces whom she pleases. You expect some kind of horrific reveal about her father's behaviour when she was younger. There isn't. He didn't like his sulking teenager. Nor did her mother.
Her own children are uneducated and dysfunctional into their 20's (as far as it goes)
But this somehow makes her a wonderful, resourceful teacher?
Season 5 keeps your jaw open, and on the floor in disbelief.