I’m through 3 episodes and it’s pretty good but I can’t help thinking If they were interested in circa time period LA they should have just adapted the Easy Rawlins books instead of making kinda generic noir out of Perry Mason. AFAIK the only adaption of the Easy Rawlins books was the movie Devil in a Blue Dress with Denzel Washington and Don Cheadle. They could have just taken the Officer Drake issues seen in this episode and based the whole show around it (Rawlins is a PI, not police but still.....)
I have not watched a second of this show. But based on reactions and knowing HBO; they are probably trying to build series from the ground up. Instead of having him jump right into the court room they are having him cut his teeth on the streets first. Similar to Batman begins. Insead of throwing him right into the suit, they are having him go and train in numerous fighting styles and gain ninja skills. They are hoping this will last multiple seasons and want to milk it for all its worth. Just two cents from someone who has no frame of reference.