The best features I've had experience are:
- a vast range of integrations available out of the box
- public APIs letting you achieving almost infinite integrations
- a very quick ticketing handling
- a free version in which you could get a first impression Review collected by and hosted on G2.com.
The fact that an attack has happened recently has decreased my fidelity to the product. As a software engineer, I know this kind of thing can happen, but that does not change the fact that it has happened.
Minor: at first glance, it was not really clear the differences between a post and an idea in the official documentation. In general, a quick review of the official API doc with some vertical in-depth analysis would provide a better product. Review collected by and hosted on G2.com.