I like the show. It's a typical cop show that has drama, with just a dash of comedy and romance.
I like Nathan Fillion. I always have since FireFly. I thought Castle would be hokie, a writer and cop partner, really? But it worked and it worked because of Fillion. Well, The Rookie also works because of him.
It's a good cop show. If you like cop shows, you will be entertained by this one.
