People seemed to be way more negative in the thread for the first episode than in this one. Personally I think I liked the first one better, though I watched them consecutively and they're really a single story anyway.
I have my misgivings, but my overall impressions are positive. I hope the whole first season is not just war stuff though, I was really not fan of than on DS9 or ENT. I would have loved an entire episode focusing on Georgiou's and Burham's adventures on the sand lobster planet...
I really liked the characters, the way how Burham's vulcan/human duality was portrayed was really nice. I liked Saru and his dynamic with Burham. I really liked Georgiou... too bad she is not a regular...
But yeah, the Klingons... I really don't mind reading subtitles, but the delivery of the dialogue was just bad. And beyond that, the Klingons seemed to have lost any spark or personality along with their hair. I'd take the rowdy space vikings of TNG/DS9 over these guys any day.
Quality of the visuals is obviously very high, though I still don't like the Fed or Klingon costumes. I though they'd look better in action, they really didn't. The set design was fine I guess, based on the little I could glimpse in that darkness...
My absolutely biggest gripe is that they really didn't sell Burham's decision to mutiny, which is pivotal moment to her character and possibly the foundation to the entire series. It just didn't flow naturally and her actions didn't seem believable. Her decision to murder T'Kuvma in the end instead of completing the mission didn't help either (also, they really should have brought some token red shirts along.)
Nevertheless, I enjoyed these episodes quite a bit, definitely way more than any JJ Trek, and I can't wait to see more.