It has been an incredibly dissapointing experience to find that HubSpot does not enable out of the box syncing for Deal Line Items to Salesforce Opportuniy Products. To sync Deals and Opportunities without the consideration of line-items leaves out the most important commercial aspect of Deals in the first place, what the customer actually purchased!
We would love to move our Sales team completely into HubSpot, but this is a gradual approach and we have other commercial teams working in Salesforce. Without the ability to seamlessly move from one to the other, I don’t see how we could realistically move away from Salesforce into HubSpot.