I just watched closing episodes 19 and 20 and I really don't understand people who say that the setting was bad. I am Peruvian and I can say that at least in my country and many other Latin countries in which I have been to, in the small and remote towns (remember that it was supposed to be a small and remote town) things look quite like that, although I must suggest to stop using dolls when it comes to babies, because they kill the WHOLE mood.
Happy for Shaun, Lea, Lim, Morgan and Park, sad for Claire. The only thing I can say is that for season 5, try to open up the series more, to make it more interesting and not so drab (I feel like this is how season 4 has felt, as it has been all about Shea). Because the charm of the series used to be the thrill of seeing the very particular way in which Shaun faced DIFFERENT real life situations and now that everything you show has to do with Lea, that charm is gone!!! I love Shea♥, but try to show more diversity of situations and experiences of Shaun's life, and please show and exploit more characters, because this season for example you left Glassy quite aside and he was my fav character .....
Also, I am writing this with tears in my eyes. The song "Hasta la Raíz" that you put on at the end of the episode was the favorite song of an aunt of mine who passed away last year. You guys really made me cry.
I think you guys nailed it with the season finale. I just hope it's the good starting point that the series needs to resurface in season 5, you need to get it back to its essence, the esssence that the audience loved so much during the first 3 seasons. I'm sure you can♥♥♥.