I thoroughly enjoy the depth and detail of this show.
When I first read the description that a whole season focused on only one crime, I thought there was a pretty good chance that it would be too drawn out and, therefore, boring. HOWEVER, I was very pleasantly surprised and continue to be impressed with the writing and acting.
I would have been interested (and hopefully watched it) during its original TV run, but I watched very little TV during all the 1990s due to family involvement and very long work hours... very little time for TV.