I installed it on 10 computers so far (some at my workplace) and the actual update process completed successfully on every computer.
My ageing home desktop PC was the only one so far that gave trouble, which turned out to be a problem with Malwarebytes3 Premium. I ended up reverting to Malwarebytes2. Version 3 had various issues such as prevent Word and Excel working properly, throwing up pop-ups that some component is disabled and even causing noticeable stuttering (reminds me of McAfee).
One other issue I noticed with the Creators Update is that takes a lot longer to boot on both my home and workplace PCs. With Fastboot disabled (or a full restart), it displays a black screen with a spinning circle for about 1 minute before showing the login screen.
My workplace PC also lost sound after the update. Microsoft replaced the soundcard driver with its own driver during the update and it would not let me roll it back. However, this was easily fixed - I downloaded and reinstalled the soundcard driver from HP for this PC and the sound returned.
So far I haven’t heard any issue with the other PCs and laptops that were updated. Besides the longer boot time on my PCs, I haven’t had any further issue either.