We wrapped them as "To the Marks Family from Santa" to avoid bickering between the boys as to which character belonged to whom. Since opening them, the younger boys have played the games nearly every day. Seeing their reaction, I then ordered several more of the Infinity games and toys online to broaden out the play possibilities.
At this point, they can play as characters from the Incredibles, Monsters Inc., the Pirates of the Caribbean, the Avengers, Brave, Lilo and Stitch, the prequel Star Wars movies, the original Star Wars movies, the Force Awakens, the Guardians of the Galaxy, and Phineas and Ferb (well, we have crystal Perry)--Spider-man is on the way. While there have been some shouting matches (especially when they decide to turn their lightsabers on each other's characters), they have been playing well together.
I am amazed by the wide variety of entertainment offerings that the games have--from standard videogame quests, to stories, to world-building, to kart racing, to arena fighting, this game seems to have a bit of everything. Now I just need to find some time to squeeze in some play-time myself.