You get a standard Harrison Ford Indiana Jones movie. It is enjoyable and has plenty of action and comedy. With one exception, the cast is OLD. It does set up nicely for a new series with a younger central character.
I'd recommend it for those who enjoyed the original movies when released. There are a few exceedingly (but clearly fakey) gorey scenes, just like the previous Indian Jones movies. If parents are sure that kids can handle that kind of gore and ignore a few curse words, I'd approve it for kids. The one teen/early-20 character might not be enough to draw teens, but they might be interested once there is a sequel (which seems likely).