I am looking at the low rating that users give this show and I wonder why. I guess it is because of the Bad boys link and this been very distanced from it.
Ok - here is my opinion:
TLDR - It is well above average.
Break down :
Script - Average - it is 100% what you expect from cop drama - if you like the rest of the cop shows , you will like this one. If you have watched a bunch of these, you will know what is happening well before it has happened, but that is true for every cop show out in the open, now.
Acting - Above average - come on, you see the cast list, they all are well know, with a lot of experience.
Soundtrack - Very good - I like the music a lot .
Production quality - Very good - You can see everything, even in dark scenes, hear everything without wandering what they are saying , good composition.
Few minor annoying things for me - I personally would have been a lot happier if the rebel daughter cliché was not in this one, but since it is kept to a minimum I am fine with it.
The jokes don't always land.
The only big problem I see with the show is that it was marketed like Bad boys spin off , and from what I can see it would have been better if it was not. This is another time marketing strategies killed otherwise good show.

P.S. The rating system needs to be changed, because currently they are more bad marks than good. and they need to be renamed. Because -- 5 been - Meh --- 6- Fair --- 7 - Good --- 8 -- Great ---- it is to big of a gap between them . And I think 5 should be average and 10 should be Great and the rest in between should be positive marks. Because I thing the show is very good, but not great. So I am forced to give it 7 which looks bad on the scale from 1 to 10 .