A classical hypergraph can be easily drawn as a bipartite graph (see <a href="http://en.wikipedia.org/wiki/Bipartite_graph" rel="nofollow">http://en.wikipedia.org/wiki/Bipartite_graph</a>). HyperGraphDB goes to an extra dimension (with higher order links) and that's hard to visualise if you want to see connections b/w different abstraction levels. Otherwise, once you get past the slightly unfamiliar concepts, HyperGraphDB would make working with complicated models much simpler.