I finished the show almost a year ago and I haven't been able to shut up about it ever since. It is the best show I have ever seen, and I've seen a fair few so I would know....... The way I'd describe it and its goal(?) is that it is a truly positive show that lifts you up and nourishes your will to live (but you have to have it for it to work I think). It will not teach you some wise and profound life lesson (you have books for that), in fact in that department it may seem a tad simplistic. But I promise you that it takes that simplicity (always a plot element, never a flaw in the writing) and fleshes it out completely.
I don't really know what else to say. There is no overacting, the setting is not claustrophobic as with so many shows lately. I found the ending extremely satisfying. THE ACTORS LOOK LIKE REAL PEOPLE WHICH IS REALLY REFRESHING AS WELL. Watch this show, I tell you, and you will not be disappointed. It's just such a beautiful show and you deserve to see it.