My opinion?
Well, seems mixed. The actual game is mechanically sound. Police seem very powerful as compared to EM4, where the vanilla police were very useless. Now, police officers have some actually decent tools besides simply fighting and potentially getting the suspect into custody.
Fire vehicles look of good quality, their functions are similar. Hose physics are rather nice, Automatic hose movement is also nice.
But everyone knows that is not the issue. I cannot get over 30fps on MEDIUM. I get it, Ultra should be maybe for future gen cards. But HIGH, that should be for today's higher end cards. I have a very powerful GTX 670, and I can't even get 60fps on LOW. Unacceptable. Also, I looked into it, and this game uses over 10gb of ram... I have enough but that is crazy. I feel as though this is not bad optimization, but has to be an error with the game, I honestly cannot imagine having such little optimization.
Regardless, after a few patches when we can get 60fps on high, I think it will be very good. I was having quite a deal of fun just playing with 20-25 FPS, but it really limits how long I can play.