I must admit I was ready to give this show 7 stars, being veeeeery nice because I love the actors in it. Up until episode 7 I was seriously thinking about dropping it. Thankfully, after episode 7 there weren't as many cry scenes and we finally started seeing some character development. I think the acting itself improved as episodes went by. All plot lines were interesting to me and I didn't get bored while watching the four couples' stories. I'm glad I finished it because the concept of the whole drama really made sense by the end and the character development (which to me was the best part) was very obvious and warmed my heart. I'm happy I stuck with it.

If you're thinking about watching it, I say you should. But give it some time because it gets better after the first half/two-thirds.