Win 8 is a fiasco.
I replaced my Win7 laptop with a new Win8 Ultrabook - immediately upgraded to Win8.1. So no experience with Win8.0.
That said...
I’ve found Win8.1 to be far more stable and faster than Win7. It boots direct to my desktop almost instantaneously vs (by comparison) Win7’s “slow boat from China” speed.
It also amazes me that so many love XP ignoring the fact it had the infamous Blue Screen of Death syndrome with so many crashes.