Well, I binged the whole season in one day. I enjoyed the final season and the ending mostly but it's probably going to take a little while to process my thoughts on it.
I definitely think that this was a show that grew more interesting as it went along. I remember when I watched the first season I was interested in the premise but thought the show was a bit boring. The "baddies" stole the show. The Smiths, Tagomi and Kido just were just more interesting than Frank, Joe and Juliana so it is perhaps fitting that the final season featured Smith and Kido so heavily.