Swept through Seasons 1-4 in about a month or two. The show was definitely in it's stride Season 1 & 2. Really liked the acting and the development of the main characters. Season 4 felt like one lone denouement to me that didn't have much direction.

They way the show dove into loss and mourning and reflection with Gordon's death was probably my favorite part of Season 4. I didn't really care for Donna and Cameron's redemption at the end (wtf was that Phoenix scene? I had to watch that again to make sure I wasn't having some Gordon Clark type of flashback)

John Bosworth was one of my favorite characters - glad he and Diane found their peace. Wasn't pleased with the Joe fallout - I felt like of all the characters HE needed the redemption the most. He's still looking for something.

Halt and Catch Fire's Most Radical Message Wasn't About Computers
It wasn't about the power of technology, it was about how that power was wielded.

Stumbled across this article from right after the show ended, randomly today. I had forgotten how much I enjoyed Halt and Catch Fire overall. Definitely recommend it as a quick watch for anyone looking for a new series while we're still in the lull before most things come back.