I like Highcharts a lot and we are paying for and using it, but be careful with the licensing. Chances are you'll need to pay $390 for it unless you're using it on a single domain, in which case it's $90. And that's for a single developer. 5 developers and multiple domains = $1500 without support, and there's nothing in between. And if you don't get the license and support you don't get hotfixes and updates, which seems odd.
There are a lot of other charting libraries out there. Look at the licensing before you commit to any of them.
"For use on a simple webpage that is not considered a web application. A web application is a website that has customer specific data or charges for its use. This requires a Developer license."
There are a lot of other charting libraries out there. Look at the licensing before you commit to any of them.