At first I thought "no please, not another cop show" and I wasn't sure about Nathan Fillion as a cop. But I must say, the directing is spot on, and the writing is refreshing - especially the relationships of the rookies and their T.O's, their relationship with each other, the conflicts they have to deal with, and the use/views of the body cams. Also surprisingly, Fillion is perfect for this part and nails his role, and all other actors were perfectly cast and also are great in their roles. I especially appreciate seeing the various parts of L.A. and the different people/conflicts the LAPD has to deal with - outside and within the force. So far so good, let's hope the writing progresses as good at the pilot was throughout the season. A well deserved 8/10 from me.
EDIT: 4/2019 - upped my score from 8 to 9/10... the writing has vastly improved; more realistic (and original) drama, and much less cliched cheese. Keep it up guys!