I have binged watched the first 5 seasons, twice. They have added just enough twists to keep me involved. I'm watching season six and believe binge watching is the best way. This is a good series, certainly worth watching. I picked up more information the second time through and enjoyed it more.
I'm not sure about season six yet. It seems to have too many subplots. We will see what the future brings. My question is, "Where was polis?". DC to NYC would be a three day walk. They seemed to make it a lot quicker then that.