If you look at medical EMRs (essentially a CRM where patients are customers and salespeople are doctors) there is a similar situation as the CRM market, where a few big players dominate the scene with crappy software and feature creep (i.e. Epic = Salesforce). Based on the clean UI you have so far, you're definitely on the way to building a better user experience for CRMs, but at the end of the day you have to sell this to a salesperson, just like people selling better EMRs have to sell to hospital administrators who don't care how great the code is.
Consider an organization spending $10k/year on HubSpot. They're also spending at least a million a year on salaries/commissions for their sales staff. Optimizing software costs addresses 1% of the total spend, while making sales people more efficient optimizes the other 99%. In general, if your target customer is sales management, I would pitch support/customization contracts to streamline sales organizations when you're picking up initial customers. This would also likely bring you perspective on the wide range of customizations out there.
Consider an organization spending $10k/year on HubSpot. They're also spending at least a million a year on salaries/commissions for their sales staff. Optimizing software costs addresses 1% of the total spend, while making sales people more efficient optimizes the other 99%. In general, if your target customer is sales management, I would pitch support/customization contracts to streamline sales organizations when you're picking up initial customers. This would also likely bring you perspective on the wide range of customizations out there.