I have used StoryDocs for 7 days now. The usability is great and the documents loading time is good. However, it seems like there is no integration available for Hubspot, regardless of what their website claims. I purchased Tier 3 and when I tried to set up the integration with Pipedrive, a message pops-up asking to request support. It's been over 24 hours since I requested support for my pipedrive integration and I have not received even a support notification that my request has been received.
I really hope they turn this over, otherwise I will ask for a refund.