I thought this was awesome.
I've never seen the original series, but from what i gather, this looks to be a throwback to that in a sense, with the lighter adventure tone, going to a rocky planet, etc. I half expected to see Kirk fighting some lizard monster, haha.
Didnt get a Guardians vibe at all, even if that was the producers' intent. I got a....ST09 vibe, given the song, but past the origin drama. Feels like a natural progression to me given the second movie ended with them embarking on the 5 year mission, entering the classic ST status quo so to speak.
I thought this trailer gave this movie a lot of character, whereas I was afraid it might have just kept on the path of Star Wars-lite. That was fine back when SW was dead in the water, but it's back now and reclaiming the 'epic space opera throne', so it makes sense for ST to zero in on what makes it special: Either 1) The intelligent hard sci-fi, or 2) The lighthearted adventure, which makes more sense for a blockbuster ST movie trailer. Telling audiences that this is from the FF director was smart too. The hard sci-fi could still be there in the story, but I wouldn't begrudge the film if it's relatively shallow, so long as it tells a good story and the characters feel like the characters.