This is from the pilot only. I've never read any of the Karin Slaughter books, so I'm new to Will Trent. Screenwriters love conflict and Will Trent seems to be in conflict with almost everyone: his boss, cops in APD, the father of latest victim, his new partner and of course GBI taking over an APD crime scene. Good writing is knowing when to tone back the conflict. The steady banter is de rigueur in many cop shows, some of it's funny.
Will is a Sherlockian type character, he sees connections in events and crime scenes differently than most people. As Faith said, he read that crime scene like a book, which is why Will's boss dragged him there. Maybe his dyslexia and introverted personality help him in some way. The series hasn't figured out if it's a comedy or a drama, hopefully the two don't collide as we move through episodes. I liked the cast from Ramon Rodriguez to Betty. The animal shelter scene was very funny, Betty is a scene stealer. Others are Sonja Sohn, Danny Burstein, Mark-Paul Gosselaar...
I've enjoyed this series for two seasons and all of a sudden in Season 3 it's no longer about Will Trent, it's become the "Faith Mitchell" series. Faith Mitchell, Amanda Wagner, Angie Polaski, Michael Ormwood...they're all good characters, but I watch if for Will Trent. If the producers are going to spin off a "Faith Mitchell" series then I wish them success, but I'll stick with Will Trent.