I caught the first episode yesterday. I wasn't expecting much as I'd heard a few negative things about it. Also, the last Star Trek series was a mess and I gave up watching half way through.
But I was genuinely surprised at how good this was. I wont say much on the plot as I don't want to be a spoiler. After being a bit unsure if the old geezer had left it too late for this role, be convinced me otherwise, he's brilliant.
I'll definitely keep watching to see how it goes.