I have some experience with it today and wanted to know about yours.
Based on my limited experience:
On the other hand, I find the following aspects quite challenging:
I mean points 2 and 4 in Base process
Picture from the documentation to make the post more visually appealing 
After creating the post, I found existing discussions:
However, I'm still interested in hearing about your experience with it.
After my experience with the rebase process, I came up with an idea:
We've been working with IFS since the 21R2 (early adopter), went live with 23R2. To be frank, rebasing the pages is a horrible experience. I try to rebase it on the lowest level, but sometimes I do that only to find out that I need to “apply rebase” on the highest level to get it to be up to date, causing all my work up until that point to be useless. We don't only use custom fields but also sometimes add a criteria on editing fields for instance.
These aren't always correctly shown as edited and therefor easily lost. Sometimes with updates, when opening the page designer on certain pages it completely stops working and closes the page designer again, causing the configuration to have to be deleted and rebuilt from scratch.
For a evergreen solution this is absolutely unexplainable.
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