Totally agree with Inartie. When I saw the pilot, I immediately thought "I don't know. There are much better series". So the series really has to come from a good home and take a certain (more exciting and original) turn if it is to hold my attention. I'm curious. I'll give it one more chance.
If you are a bit picky you can skip this series. Everything is 'over the top', totally not credible and well they get away with it time and time again .. ??! Ray Liotta takes the cake.
In January I was so impressed with the pilot that I waited more than half a year before starting the second episode. My first thought has not changed yet, however. Jennifer Lopez can still look really good and if she's a little bit sensible she might have a chance with me, but we'll have to talk about the jobs she accepts first ;-)
I think this series is one of the better of all those countless police series and I don't watch that kind of series because I think they are all the same (CSI, NCIS, Bones, Criminal MInds, etc.) I think Lopez and Liotta are very good at their role. The story is a bit cliched here and there, but not at all. It's not a series of 'oh, there was a murder and at the end of the EP they caught the killer and closed the case'. :)