Given the reviews was expecting something True Detective, The Americans great. It's not. The first three episodes are actually boring. Outside of the actual killer interviews it just plods along. Bill Tench character is good, the 1980's cars being used is the next best thing about the show.
Season 4 was a bit weak compared to the first 3 seasons, so was worried it was going to drop off quite badly like so many shows do. Season 5 is as gripping as the first 3 seasons, can't wait for the final season to start.