[deadgiveaway]

Thanks, but Fastmail is $5 per user per month if you want to use your own domain. Not much less than Google's $6 per user per month. I'm going to want between 2 and 4 users, but they're not heavy users and I just know I'm going to be wondering why I'm bothering to pay when I could just create another google account, have access to docs/calendar/drive/etc which I'm apparently not going to have access to even if I am successful in doing the "update to workspace/don't pay for workspace/cancel workspace/keep the workspace accounts in a sort of zombie state" dance.

[Macha]

For what it's worth only the admin user has to be on the Standard tier to use your own domain. The others can be on the basic tier of €3/user/month from where I am.