As you would expect, the special effects were excellent and the action was solid. If you're a fan of the series then you're likely to be very happy with this film. It was an enjoyable romp through the formation of the crew that we know and love. Kind of like the Baby Looney Tunes version of the original, with effects they could only dream of.
Though no member of the cast is likely to get an Oscar nod, the performances were consistent and appropriate to the series. I also found the casting to be interesting and enjoyable. I'm looking forward to the sequels.
Of course, you need to make sure your disbelief is fully suspended, and you probably don't want to overthink the plot. Just take it for what it is and enjoy the ride.