The ability to create custom graphs with drag-and-drop ease is great! I also like how easy it was to make minor changes in my graph's layout once they were created initially (ease of editing).
There are some things that could be improved upon but nothing major - just small details here or there. It would definitely help if this tool had more options/features available than what we can currently use out of the box within our project itself as well as having an open source version so people who want advanced features have them too without needing additional licenses etc., which isn't always feasible due to budget constraints sometimes. We used plottables mainly because you don’t need any programming knowledge at all when using their software; everything has been done beforehand by professionals while maintaining full flexibility over design choices & visualizations from day 1 onwards via real time collaboration through Slack channels.