The story is the most obvious problem. There's no re-occuring villains, and the heroes that do come back do so in random order. Also what story there is, isn't detailed. Another problem is the 2.0 build. It's a great stride in building, but the sets will become repetitive in a few years. The types of armour are limited, as is the core build. I realy like hero factory otherwise. It's givin us that 2.0 build, which can allow MOCists to further their imagination, and the looks of the sets are quite nice, IMO.