This drama has the very aspect I like in Japanese dorama: Hard work and team work. It is a concept I often encounter in most jdoramas I've seen so far, and I agree. None of us can succeed alone, it takes hard work and team work. Hence, I give the story an 8.
As for the casts.. I have the most problem with seeing the two leads. I couldn't seem to feel the romance between the characters Sawatari Ichiko and Sakisaka Ryo. It's just.. not there.. But I loved all the other characters surrounding these two. I like how the writer made them grow and connected them to each other.
The music is okay - i guess.. I don't feel them out of place but it did not manage to make "the mark" in my brain the way some ost-s do.
I would probably not watch this drama again, but for first timers, I think it is worth the watch.