Star Trek Beyond is a Star Trek film. It's a good one. I reckon it's the first "proper" one of the new movies, because it has a proper element of "boldly go" about it. They really are meeting strange new worlds etc etc. That said, it does have remarkable similarities to the other two movies, which both had a plot where someone tries to take over/destroy everything. But that's Federation life I guess.
For me, the best thing about it was the way that, now we've had a couple of movies to properly establish the characters, we can sit back and enjoy how they interact. The special effects are good, and there are some suitably silly moments too. Go see.