By 2015, DigitalPlayground had perfected the "high quality" (HQ) standard that users now expect as a minimum. At the time, E02 was a standout for its use of:

This made E02 a favorite among collectors who valued production value over raw novelty. The “cougar” niche also benefited from higher detail rendering—fine lines, textures, and expressions are more visible in HD, which actually enhanced the intended “mature elegance” aesthetic.