There are plenty of better Australian police shows out there.
The biggest problem with the series is that it isn't quite sure what it wants to be. Is it a gritty crime show, a slice-of-life ensemble police story, a police action/thriller, or semi-soap opera taking place in a police station? It's meant to be an ensemble piece, I think, but starts off by focusing on two of the characters, making it look like they're the two leads but then it shoehorns in two more in the second episode. The new characters start off as antagonists that would obviously go away once the plot point was resolved, but ultimately get forced to join the local precinct. It was probably intended to bring in the full cast slowly to build up the group, but it felt more like the writers realized the first two characters didn't have any chemistry so new characters got being jammed in.
Donna, the first character, starts off as a kick-butt/foolhardy rural cop but quickly devolves into a bland non-entity once she goes to the big city and gets a male partner. Mercia, the partner, quickly gets all the focus. He's a royal mess because he's several tropes stuck together - the hot headed cop who's bleakly introspective with a dying former partner and a lawyer love interest whose cases just happen to be connected to him and is a lapsed Catholic(?) who's shaken so badly he rediscovers his religious roots. I'm shocked he wasn't avenging the death of someone close to him that was two days from retirement, on top of it all. The two new characters are a smug team of Internal Affairs detectives who somehow get re-assigned to the station they just investigated and arrested two crooked cops. After all, how could that ever go wrong? (Is it even possible for IA to get assigned back to regular duty without warning, let alone at the request of the commander whose men were just arrested and jailed for blackmail and rape?)
In addition, the sound is seriously out of whack. The music levels are way too high, especially when the characters are talking, so I can either use close captioning, turn the volume up to hear the actors so that my ears are bleeding, or keep the volume at a normal level and miss at least half the dialog. Considering the writing, missing the dialog isn't that so bad an option.