Let me get a couple things out of the way. First, on a pure storytelling level, there is really no reason this needed to be tied to the "Motion Picture" era. Other than some brief scenes of Bones still wondering if he wants to stay on the ship or finally retire, and a scene where a Starfleet admiral reminds Kirk he is only remaining Captain for this shakedown voyage and will soon be off the Enterprise for good (neither of which, it should be said, are resolved by story's end), you could set this tale anywhere in the original crew's timeline. I get the feeling they only did the TMP connection because it's an easy gimmick to differentiate it from other Trek comics, and possibly because they thought it would be fun to draw the crew in those uniforms (they even throw in a joke about them looking like pajamas). Also, and this is actually a much bigger problem, there are certain elements of the story that are woefully undeveloped. The plot concerns the crew meeting alternate dimension versions of Uhura and Chekov. But it never bothers to explain why this version of Uhura is still named Uhura while the alternate Chekov has a different name altogether ("Akriss"). Nor does it get into just how and why the alternate Chekov became SO evil in his universe, which is a weird thing not to address since the story DOES acknowledge Chekov-Prime's nervousness about possibly having that sort of evil within him.
But, okay, with those issues out of the way, I'll admit that I still really enjoyed this. If you can set aside the nitpicks (and chances are, if you're a Trek fan, you're used to that), you'll find a really fun space adventure story that never slows down and has a lot of fun twists and turns. The interplay between the crew is great, as well. There's a casual sort of vibe between all of them that reminded me more of STRANGE NEW WORLDS, so those bothered by that show's view of Starfleet might not dig it, but I personally thought it sold how much of a family this crew has become by this point. So yes, there are some problems here, but sometimes you just want an exciting story with the characters you love, and this really ticked that box for me.