This is a nice, quick game that can be played with young children (maybe 7yo+), despite the 14+ age rating. They might not get the strategy, but they’ll get the game mechanics. There is no mature content, although there is implied violence (as the symbols represent troop types and the game has military themes).
The game essentially revolves around managing probabilities (effectively, betting on outcomes of random rolls), but does also involve elements of blocking other players’ strategies.
It is not unsatisfying with 2 players, but is not really very complex. With three players, intersecting strategies deliver more complexity and with four players the complexity becomes more satisfying.
Ultimately, though, it is a pretty much entirely luck-based game.
The box is small and the essential components (cards and dice) even smaller, so it is appropriate for travel play, so long as the 7 dice are rolled in the box. I wouldn’t recommend rolling the dice outside some kind of container while travelling, so probably best to take the game in its box, even though the box is probably twice as large as it needs to be just to hold the components.