The jet engine powered rocket-engine-assisted DVD drive no longer fires up to maximum loudness when booting installed games, but load times are pretty much the same. The fans, however, get just as loud, so it's still loud.
One thing I did realize about NXE is that when you press the off button/turn it off in the menus, it puts the console into standby and keeps running the fans until it cools down, then shuts off (rather than just turning off while the chips are still really hot) .