The visualizations are very good for my needs as they enable me to see how things fit together in real time or at least within seconds of creating them which allows me to make changes quickly if required. I am looking forward to having more options available such as customizing some aspects but this will take longer than hoped too! Currently not so much - just try it out first with no expectations then consider your requirements before investing effort into developing functionality that you do not need now. Being able to visualize network links/flows between different modes (bus vs train) across multiple nodes has been greatly beneficial when implementing new bus routes from scratch.