The privacy "update" comes through first and has to be in place before the Creators Update will install (or so the plan is).
My father's system that never would update since Windows 10 first came out has updated 'finally.' When the Creator's Update installed it has new privacy (telemetry) choices for the user. The other choices I was aware of from the insider program, so not too many surprises.
Edge is looking better, but if you import bookmarks from IE you may be disappointed. Some links just don't work anymore (not sure why), but the biggest problem for my father was the jumbled mess Edge makes of them. Several sub-folders were merged into one without warning or reasoning from what he reported.
I had run the update from the assistant site, restored his IE, and then copied his bookmarks so that he could get adjusted to the new browser before moving completely away from IE. Then I left him to it, but it wasn't ten minutes before my phone was ringing for a rescue (nothing tragic). MS has eliminated several apps like the CPU-Z, and a few anti-malware repair programs (that haven't been used in quite a while) and so you can expect things to disappear from your desktop (IE included).
I'll let him be the guinea pig for a few days before I even consider it. You can defer the update for up to four months if need be.