Hi Zachary - my agency is a Hubspot partner. We've tried several other similar platforms in the past (Optify was a favorite before they shut down), and have done some testing with MindMatrix and now LeadSquared.
The level of support you'll receive from HS is far and away one of their better value props. Plus, they are constantly updating and upgrading software and features. All in all, we're well pleased.
I'm happy to discuss offline if you prefer.