You clear your cache and flash. It could hardly be easier.
Yeah, but the whole process of rooting, installing a custom recovery, and then flashing the new ROM... There's so many different things, minute details that I have to pay attention to, etc. That in itself isn't so bad, but when you add that to the fact that I have to start with one version of Android and manually upgrade it twice too just to get it to stock lollipop it's just ugh