As someone who has a codebase with a number of custom D3-based visualations: complex D3 could be your future maintenance headache (unless you have someone who r

As someone who has a codebase with a number of custom D3-based visualations: complex D3 could be your future maintenance headache (unless you have someone who really understands D3). It's so different from other parts of web development that a developer probably can't just jump into the code and fix a bug, you have to understand D3's coding model, and then read the code you've got to build a mental model of how it's translating to what you're seeing on screen (the mental model building is hardly unique to D3, but you're not going to be reusing any of your existing mental modelling skills here). Then you will go back to your normal web-dev, forget everything you learned, and have to go through the whole process again in 6 months when you have to make another change. D3 is super powerful, and very fun to use, but for production we stick to Highcharts whenever we possibly can. There's lots of stuff you get out of the box from a good charting library that you're going to be building for yourself if you use D3. Though I have been told that D3 v5 is easier to learn and use.