Two seasons of four episodes each were just perfect here. Any longer and there would have been too much padding. As it was, the two storylines in each season developed well and at a good pace. The programmes were lean but didn't skimp.
Notwithstanding that, there were some plot unbelievabilities. The squads made far too many mistakes, both legal and in the field. Of course, the villains had to be given a chance to do their thing but it seemed a bit contrived on occasion.
The personal rivalry between heretofore bromancers Yach and Constantine gave an added frisson to the action. The bumping off of major characters added even more.
Unsurprisingly, there wasn't a third season having regard to the ending of the second one. I'm not going to introduce spoilers but it was a shame there could have been no way forward. I assume this was a decision by some of the actors not to continue, which happens sometimes.
I watched this within thirty six hours. I definitely recommend it.