Suddenly upgrades?
you don't have to upgrade your Apple iDevice on day 1 of the release you know.
Most really savvy tech people let others do the final testing for them and you know wait a week or even a month before applying the update.
Also, unlike a certain PC Operating system, while Apple might nag you a bit (well sometimes a lot) they don't force the update on you. You can ignore it if you so choose.
As they say, the jury is out on the new Filesystem. I'm sure this site will {gleefully} report any issues people experience with it. Then we can all make up our own minds as to if it is a POS or not.