Well, the tory is really good, and so is the cast, however the drama could be shorter.
There are some scenarios that keep repeating themselves, and could be compiled into one, so that the viewer doesn't get the feeling of:
"- Oh, here we go again..."
But besides the recurring scenarios the unit faces, it's a really interesting story.
You don't always get this type of light thriller, with bits of comedy and romance, so I do recommend it.
I watched in one sitting (with a some fastfoward moments) and enjoyed it very much.