Hi @moonwalker-arts, thanks for bringing this to our attention.
The Essentials plan is for individuals, and not for teams, so if you both purchased your own Essentials plans, then it would work. Sharing account credentials with another user would be a violation of the terms of service.
The Business plans offer more quota and greater security and ownership of files created within the team itself, which the Essentials plan doesn't offer.
If you have any further queries, feel free to message back.