For fans of the base game these packs are a must.
These expansions, are really over priced for what you get, b files gives a little more, but both of them only really consist of a thin senario book, a small handful of cards for them, and a hanful of extra models, a fraction of what you get in the core game, yet they ask for over half the price of what the core box cost, and these are not even all the expansions, there are still 3 more core boxes, covering birkins other mutations (split over 2 boxes) and another hero pack.
This game is fantastic, but the expansions are way over priced. So be sure you will be happy with them, before buying.
These also do not fit into the core box without taking inserts out, and even then, by the end of it, you will need at least another box to fit overflow.