This show is one of the few that I attempt to regularly tune into each week. I'm not a die hard fan analyzing every sentence/glance/breath of every character, but I certainly enjoy the show. A person who says this show has poor acting or poor character/plot development is most likely disappointed by every TV series and not being fair to the genre. This show says more with a moment of silence than most shows say in an hour of dialog. It is impossible for a show that has run as long as this one to dot every "i" and cross every "t", of course there will be holes. But by and large the show remains true to itself and at the top of it's genre. The acting and action are appropriate, the plot works well enough to be create a suspension of disbelief and the character development is the best I've witnessed from any long term series.
Thank you for creating a thoroughly entertaining show, I will miss it greatly after this season.