I heard of the update deleting some files for users, that is a bit irritating indeed.
Sometimes bugs can develop in an update, but it is more rare these days. I think we have have become a little complacent, but overall Windows 10 is the best OS they have delivered.
The one thing they have fixed and I am super appreciative about, it will no longer kick you out of certain applications to do a mandatory system update.
No longer will you be working on a project, or in my case playing a game, only to interrupted by the blue screen of death and rebirth.