I've read mixed reviews. Some are experiencing problems and others are finding their computer better then before. It seems that this is like playing the lottery right now. Never know if your gonna get lucky and it speeds up your PC or if you lose and it just makes it worse.
I will wait for permission from an Adult till I install this update. Heck I'll even Have THEM install it just so that I don't get the blame if it goes wrong. Time to start saving files just in case tho.