I really admire your efforts and optimism around the product. I started something similar 2y ago - not general like yours but a vertical CRM for a specific segment. My value proposition was to create something really simple, clean and start adding relevant features by compiling from my user’s feedback. I end up building a lot of more features than I expected (pipelines, tasks, workflow, email integrations, custom fields, filters, permissions, api, webhooks, reports etc). No matter how your product is, once you position your company as a CRM, the users will always compare you with others 9000 existing similar softwares. If you are planning to integrate google mail and/or calendar, be prepared to spend 15k to 90k for the third party company security assessment. I wish you very luck and I hope you can create something meaningful in this space.