Runescape Finally Received New Engine and Graphics Update, and Now I Might Have to Start Playing Again

Gone are the days of Java-driven visuals in the Scape of old. The biggest update to the game in 15 years introduces the NXT engine, which seeks to improve overall in-game performance---load a larger map area, and pre-load maps in the background. What do you make of the update--fan, or are players better off sticking to the legacy Old School Runescape version?