Unlimited Storage for Office 365?

We have an Office 365 Enterprise E3 license. I just read that we have unlimited storage on this plan.

https://blogs.office.com/2015/12/16/onedrive-for-business-update-on-storage-plans-and-next-generation-sync-client/#KlPpASeQg7dA3OrV.97

On my office system, I've installed the OneDrive Business Sync Client and it appears to show a limit. Is there a gotcha in this?

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