Before revision:  NCA-GE also trains pretty fast, requiring only a set of small synthetic graphs , and it works well for different node centralities and different network sizes and topologies.
After revision:  NCA-GE also trains pretty fast, requiring only a set of a thousand small synthetic scale-free graphs (ranging from 100 to 1000 nodes each) , and it works well for different node centralities and different network sizes and topologies.