I found this on their website - https://www.wrike.com/blog/wrike-as-a-simple-crm-solution/
Which is 100% how I am running my small org. I am in charge of outside of my day job. And also how one of our departments runs their quarterly activities.
Now for my day job, there is no way this would work, we would use Salesforce. We have tens of thousands of contacts, at minimum. Personally, I would look into CRM integrations.