I like all of their product features - especially how you can build new widgets very easily without writing any code! But best is that they have lots more products where we are planning to integrate in future as well.
We use it mostly with our existing customers but i feel its value adding across other businesses too if used properly (like tracking leads/customer journey etc). Also integration between different platforms will be easy once using this widget because there exist many integrations
Pros
The ease of use and customer support and support is amazing