In Mailchimp we can just paste all emails we want to send to. In HubSpot we have to create a contact first. We should be able paste all emails we want to send to in stead of importing/creating contacts first. The lack of this feature is making us reconsider HubSpot.
I agree -- All Mailchimp features should any be ESP standard since we are paying a premium for Hubspot!!! With the exception of automation, Mailchimp has figured out the best UX and usability.