Title says it all. I started my update at about 7:30 am this morning and after a long 'getting ready' phase, and a long downloading phase, the update took hours. Multiple restarts and then when it thought it was completed, it turns out that if you search for updates again, it will throw 3 more at you.
Firefox and Dell both updated as well. All in all, it takes a number of hours to go through the whole thing including linking your Microsoft account with your pin number again so you can access your computer.
No idea yet if 1903 is a better version of Windows 10 or not yet, however, I do see that Firefox loads and opens faster as do the links to sites like this one. Time will tell.
