Sync via iCloud Files?

What’s the latest on using iCloud to sync OmniOutliner files? Has anyone found it problematic? Anything I should know before trying it?

The reason I ask is I have lately been experiencing a lot of OmniPresence crashes. This might (or might not) be due to one enormous outline (1.45GB), so I thought I’d experiment with iCloud to see if it can handle it better, but wanted to check here first.

Thanks in advance for any advice you can offer.