Ranked in these QuestionsQuestion Ranking
Pro Real support
Support is included and provided by actual developers that give you a real answer quickly.
Pro Huge suite of samples gives a jumping off point to save time for various projects
The various chart types are all included where other options sell separate products for stock, mapping and other advanced types.
Pro Good documentation
The API documentation is thorough for property settings and includes some links to examples and tutorials.
Con Commercial solution
Paid licensing, but for commercial work it's worth it.