David Ferguson
David Ferguson reviewedHubSpot CRMOrganize, track, and sell
 RecommendedPros: 

Email integration, custom properties, saved views, tasks, flexible pipeline and deal stages, and Zapier integration. (oh and its free)

Cons: 

Some real limitations with the API, needs more team and record level security options.

I've been using HubSpot CRM since it was in Beta and it's really matured into a powerful CRM. I do pay for the Sales Pro tools which unlock a lot of power. There are some limitations however that make it a bad fit, you can read more about those in this review - https://www.techsmartboss.com/blog/top-things-you-should-know-about-the-limitations-of-hubspot-crm-with-workarounds/