Who's migrated from Google Workspace Enterprise to Office 365?

I'm currently look into migrating from a Google Workspace Enterprise System to Office 365 system down the road.

Who's done this and what issues (if any) did you run into?

I'm looking at migrating all the below to Office 365 and One Drive/Sharepoint.

Google Gmail
Docs, Sheets, Slides,etc
Calendars
Contacts

It seems like Microsoft offers a lot of tools to make this a lot less painful than it would have been three years but I'm interested in any experiences people have had doing this.
 

SandyTech

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FWIW the last couple times we've done this, it's been with BitTitan's MigrationWiz. It's not really a synch tool, so you do have to keep that in mind. But usually we kick off a migration of data that's either 90 or 180 days first and let that churn for a while (how long depends on the size of the client). Then the week of the cut over its everything in the last 90 or 180 and then the night of (usually start on Friday) we'll do a cleanup pass. Along the way you will probably have to call support and get them to pull rate limiting off your account because if you're trying to ingest a lot of data it'll slow down to a fucking crawl after a day or two.

Haven't looked at Microsoft's in-house tools but they weren't great last time we tried, hence BitTitan for us.